The second pillar consists of five daily canonical prayers. These prayers may be offered individually if one is unable to go to the mosque. The first prayer is performed before sunrise, the second just after noon, the third in the late afternoon, the fourth immediately after sunset, and the fifth before retiring to bed.

Before a prayer, ablutions are performed, including the washing of hands, face, and feet. The muezzin (one who gives the call for prayer) chants aloud from a raised place (such as a tower) in the mosque. When prayer starts, the imam, or leader (of the prayer), stands in the front facing in the direction of Mecca, and the congregation stands behind him in rows, following him in various postures. Each prayer consists of two to four genuflection units (rakʿah); each unit consists of a standing posture (during which verses from the Qurʾān are recited—in certain prayers aloud, in others silently), as well as a genuflection and two prostrations. At every change in posture, “God is great” is recited. Tradition has fixed the materials to be recited in each posture.

Special congregational prayers are offered on Friday instead of the prayer just after noon. The Friday service consists of a sermon (khuṭbah), which partly consists of preaching in the local language and partly of recitation of certain formulas in Arabic. In the sermon, the preacher usually recites one or several verses of the Qurʾān and builds his address on it, which can have a moral, social, or political content. Friday sermons usually have considerable impact on public opinion regarding both moral and sociopolitical questions.

Although not ordained as an obligatory duty, nocturnal prayers (called tahajjud) are encouraged, particularly during the latter half of the night. During the month of Ramadan, lengthy prayers called tarāwīḥ are offered congregationally before retiring.

In strict doctrine, the five daily prayers cannot be waived even for the sick, who may pray in bed and, if necessary, lying down. When on a journey, the two afternoon prayers may be followed one by the other; the sunset and late evening prayers may be combined as well. In practice, however, much laxity has occurred, particularly among the modernized classes, although Friday prayers are still very well attended.

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The zakāt

The third pillar is the obligatory tax called zakāt (“purification,” indicating that such a payment makes the rest of one’s wealth religiously and legally pure). This is the only permanent tax levied by the Qurʾān and is payable annually on food grains, cattle, and cash after one year’s possession. The amount varies for different categories. Thus, on grains and fruits it is 10 percent if land is watered by rain, 5 percent if land is watered artificially. On cash and precious metals it is 21/2 percent. Zakāt is collectable by the state and is to be used primarily for the poor, but the Qurʾān mentions other purposes: ransoming Muslim war captives, redeeming chronic debts, paying tax collectors’ fees, jihad (and by extension, according to Qurʾān commentators, education and health), and creating facilities for travelers.

After the breakup of Muslim religio-political power, payment of zakāt became a matter of voluntary charity dependent on individual conscience. In the modern Muslim world it has been left up to the individual, except in some countries (such as Saudi Arabia) where the Sharīʿah (Islamic law) is strictly maintained.

Fasting

Fasting during the month of Ramadan (ninth month of the Muslim lunar calendar), laid down in the Qurʾān (2:183–185), is the fourth pillar of the faith. Fasting begins at daybreak and ends at sunset, and during the day eating, drinking, and smoking are forbidden. The Qurʾān (2:185) states that it was in the month of Ramadan that the Qurʾān was revealed. Another verse of the Qurʾān (97:1) states that it was revealed “on the Night of Power,” which Muslims generally observe on one of the last 10 nights of Ramadan (usually the 27th night). For a person who is sick or on a journey, fasting may be postponed until “another equal number of days.” The elderly and the incurably sick are exempted through the daily feeding of one poor person if they have the means.

The hajj

The fifth pillar is the annual pilgrimage (hajj) to Mecca prescribed for every Muslim once in a lifetime—“provided one can afford it” and provided a person has enough provisions to leave for his family in his absence. A special service is held in the sacred mosque on the 7th of the month of Dhū al-Ḥijjah (last in the Muslim year). Pilgrimage activities begin by the 8th and conclude on the 12th or 13th. All worshippers enter the state of iḥrām; they wear two seamless garments and avoid sexual intercourse, the cutting of hair and nails, and certain other activities. Pilgrims from outside Mecca assume iḥrām at specified points en route to the city. The principal activities consist of walking seven times around the Kaʿbah, a shrine within the mosque; the kissing and touching of the Black Stone (Ḥajar al-Aswad); and the ascent of and running between Mount Ṣafā and Mount Marwah (which are now, however, mere elevations) seven times. At the second stage of the ritual, the pilgrim proceeds from Mecca to Minā, a few miles away; from there he goes to ʿArafāt, where it is essential to hear a sermon and to spend one afternoon. The last rites consist of spending the night at Muzdalifah (between ʿArafāt and Minā) and offering sacrifice on the last day of iḥrām, which is the ʿīd (“festival”) of sacrifice. See Eid al-Adha.

Many countries have imposed restrictions on the number of outgoing pilgrims because of foreign-exchange difficulties. Because of the improvement of communications, however, the total number of visitors has greatly increased in recent years. By the early 21st century the number of annual visitors was estimated to exceed two million, approximately half of them from non-Arab countries. All Muslim countries send official delegations on the occasion, which is being increasingly used for religio-political congresses. At other times in the year, it is considered meritorious to perform the lesser pilgrimage (ʿumrah), which is not, however, a substitute for the hajj pilgrimage.

Shrines of Sufi saints

For the Muslim masses in general, shrines of Sufi saints are particular objects of reverence and even veneration. In Baghdad the tomb of the greatest saint of all, ʿAbd al-Qādir al-Jīlānī, is visited every year by large numbers of pilgrims from all over the Muslim world.

By the late 20th century the Sufi shrines, which were managed privately in earlier periods, were almost entirely owned by governments and were managed by departments of awqāf (plural of waqf, a religious endowment). The official appointed to care for a shrine is usually called a mutawallī. In Turkey, where such endowments formerly constituted a very considerable portion of the national wealth, all endowments were confiscated by the regime of Atatürk (president 1928–38).

The mosque

The general religious life of Muslims is centred around the mosque. In the days of the Prophet and early caliphs, the mosque was the centre of all community life, and it remains so in many parts of the Islamic world to this day. Small mosques are usually supervised by the imam (one who administers the prayer service) himself, although sometimes also a muezzin is appointed. In larger mosques, where Friday prayers are offered, a khaṭīb (one who gives the khuṭbah, or sermon) is appointed for Friday service. Many large mosques also function as religious schools and colleges. In the early 21st century, mosque officials were appointed by the government in most countries. In some countries—e.g., Pakistan—most mosques are private and are run by the local community, although increasingly some of the larger ones have been taken over by the government departments of awqāf.

Holy days

The Muslim calendar (based on the lunar year) dates from the emigration (hijrah) of the Prophet from Mecca to Medina in 622. The two festive days in the year are the Eids (ʿīds), Eid al-Fitr, which celebrates the end of the month of Ramadan, and Eid al-Adha (the feast of sacrifice), which marks the end of the hajj. Because of the crowds, Eid prayers are offered either in very large mosques or on specially consecrated grounds. Other sacred times include the “Night of Power” (Laylat al-Qadr; believed to be the night in which God makes decisions about the destiny of individuals and the world as a whole) and the night of the ascension of the Prophet to heaven. The Shiʿis celebrate the 10th of Muḥarram (the first month of the Muslim year) to mark the day of the martyrdom of Ḥusayn. The Muslim masses also celebrate the death anniversaries of various saints in a ceremony called ʿurs (literally, “nuptial ceremony”). The saints, far from dying, are believed to reach the zenith of their spiritual life on this occasion.