In the beginning the Prophet, whilst preaching the Khutbah or Friday sermon, leaned when fatigued against a post.[FN#35] The Mambar,[FN#36] or pulpit, was the invention of a Madinah man, of the Benu Najjar. It was a wooden frame, two cubits long by one broad, with three steps, each one span high; on the topmost of these the Prophet sat when he required rest. The pulpit assumed its present form about A.H. 90, during the artistic reign of Al-Walid. In this Mosque Mohammed spent the greater part of the day[FN#37] with his companions, conversing, instructing, and [p.363]comforting the poor. Hard by were the abodes of his wives, his family, and his principal friends. Here he prayed, at the call of the Azan, or devotion-cry, from the roof. Here he received worldly envoys and embassies, and the heavenly messages conveyed by the Archangel Gabriel. And within a few yards of the hallowed spot, he died, and found a grave. The theatre of events so important to Al-Islam could not be allowed-specially as no divine decree forbade the change-to remain in its pristine lowliness. The first Caliph contented himself with merely restoring some of the palm pillars, which had fallen to the ground: Omar, the second successor, surrounded the Hujrah, or Ayishah's chamber, in which the Prophet was buried, with a mud wall; and in A.H. 17, he enlarged the Mosque to 140 cubits by 120, taking in ground on all sides except the Eastern, where stood the abodes of the "Mothers of the Moslems.[FN#38]" Outside the Northern wall he erected a Suffah, called Al-Batha-a raised bench of wood, earth, or stone, upon which the people might recreate themselves with conversation and quoting poetry, for the Mosque was now becoming [a] place of peculiar reverence to men.[FN#39] The second Masjid was erected A.H. 29, by the third Caliph, Osman, who, regardless of the clamours of the people, overthrew the old walls and extended the building [p.364]greatly towards the North, and a little towards the West; but he did not remove the Eastern limit on account of the private houses. He made the roof of Indian teak,[FN#40] and the walls of hewn and carved stone. These innovations caused some excitement, which he allayed by quoting a tradition of the Prophet, with one of which he appears perpetually to have been prepared. The saying in question was, according to some, "Were this my Mosque extended to Safa"-a hill in Meccah-"it verily would still be my Mosque"; according to others, "Were the Prophet's Mosque extended to Zu'l Halifah[FN#41] it would still be his." But Osman's skill in the quotation of tradition did not prevent the new building being in part a cause of his death. It was finished on the first Muharram, A.H. 30.