It is related (in the Mishkat, Book IV, 1. 19, Part III) that ‘Ali heard Mohammed say in the pulpit, “That person who repeats the Ayat al-Kursi after every prayer shall in no wise be prevented from entering into Paradise, except by life; and whoever says it when he goes to his bedchamber will be kept by God in safety together with his house and the house of his neighbor.” Šeiḫ ‘Adi might have been in the habit of repeating this verse; and this, perhaps, led to its inscription on the tomb. In the center of the inner room, close by the tomb, there is a square plaster case, in which are small balls of clay taken from the tomb. These are sold or distributed to the pilgrims, and regarded as sacred relics, useful against disease and evil spirits. It is said that there are three hundred and sixty lamps in the shrine of ‘Adi, which are lit every night. The whole valley in which the shrine lies is held sacred. No impure thing is permitted within its holy bounds. No other than the high priest and the chiefs of the sect are buried near the tomb. Many pilgrims take off their shoes on approaching it, and go barefooted as long as they remain in its vicinity. Such is the sanctuary of ‘Adi, where they offer him their homage. Their worship may be divided into two kinds, direct and indirect. The former consists of traditional hymns sung by the ḳawwals, the sacred musicians of the sect. They are chanted to the sound of flutes and tambourines. The tunes are monotonous and generally loud and harsh. The latter kind consists in celebrating their religious rites with great rejoicing on the feast day of their great saint. And their ḳubla, the place to which they look while performing their holy ceremonies, is that part of the heaven in which the sun rises. The great feast of Šeiḫ ‘Adi is held yearly on April fifteenth to twentieth, Roman calendar, when the Yezidis from all their districts come to attend the festival celebration. Before entering the valley, men and women perform their ablutions, for no one can enter the sacred valley without having first purified his body and his clothes. The people of the villages are gathered and start together, forming a long procession, preceded by musicians, who play the tambourine and the pipe. They load the donkeys with necessary carpets and domestic utensils. While marching they discharge their guns into the air and sing their war cry. As soon as they see the tower of the tomb, they all together discharge their arms.