The hadith of Kesa is the narration of a story that took place in my house, Salma, and the infallible Imams used this hadith to prove their virtue. The Prophet (peace and blessings of Allaah be upon him) used to sit under a tent in my house after the revelation of the verse of purification, and then all five members of Al-'Abba came to serve the Prophet and sat under that tent.