A short time after returning from the Farewell Pilgrimage the Holy Prophet fell sick. The poison which the Jewess had given to him at Khyber had slowly penetrated into his system and began to show its effect. The Holy Prophet felt that having fulfilled the mission entrusted to him by God, his earthly life was to end, and he was to meet his Master. One night when he had some respite the Holy Prophet accompanied by Ali went to the graveyard, and there prayed for the souls of his companions who had fallen in the Battle of Uhud. Then he returned to the apartment of his wife Maimuna. The exertion because of the visit to the graveyard had its effect, and the fever became violent. The Holy Prophet assembled all his wives and told them that on account of his sickness, it would not be possible for him to visit each wife in turn. He wanted their permission to stay in the apartment of Ayesha till he recovered. All the wives agreed to the proposal, and the Holy Prophet supported by Ali and Abbas moved to the apartment of Ayesha. The Holy Prophet directed that during his illness, Abu Bakr should lead the prayers.