That there is no monkery in Islam, alluding to a tradition which makes Mohammed say: "In Islam there is no monkery (ruhbânîyah) and no celibacy (tabattul)," the former Arabic term being derived from ruhbân, a Christian monk, the latter from the verb batl, cutting off, which in its fifth form means cutting one's self off from all worldly concerns, and in particular abstaining from sexual intercourse. To the same root the word batûl, virgin, is to be traced, which is applied to the Virgin Mary and to Mohammed's daughter Fâtimeh. Another tradition relates that the Prophet asked of 'Akâf ibn Wadâ'ah: "O 'Akâf, hast thou a wife?" and when he answered in the negative, Mohammed said: "Then thou art of the brothers of Satan; if thou belong to the Christian monks, stick to them; but if thou belong to us, one of our ordinances is the married state." (Assemblies of Al Hariri, Steingass, v.2, 1898)