The Book of Pilgrimage (Kitab Al-Hajj)
Muslim :: Book 7 : Hadith 2782
Ibn al-Muththanna reported on the authority of Ibn Abu'Adi who transmit- ted on the authority of Ibn'Aun who narrated from al-Qasim and Ibrahim having said: I cannot differentiate the badith of one from the other (Q[Lsim and Ibribim) that the Mother of the Believers (Allah be pleased with her) said this: Messenger of Allah, people have come back with two acts of worship. The rest of the hadith is the same.