Musannaf Ibn Abi Shaybah

Hazrat Ja'far narrates from his father that when the health of the Prophet Muhammad (peace and blessings be upon him) became heavy, he (peace and blessings be upon him) asked, "Where will I be tomorrow?" The people said: At such-and-such wife's house. He (peace and blessings be upon him) asked again, "Where will I be after that?" The people said: At such-and-such wife's house. Upon this, the pure wives of the Prophet (peace and blessings be upon him) understood that his intention was towards Hazrat Aisha (may Allah be pleased with her). So all the wives said, "O Messenger of Allah (peace and blessings be upon him)! We have gifted our turns to our sister Aisha (may Allah be pleased with her)."