Sahih al-Bukhari 3388

It is related that Masruq said, "I asked Umm Ruman, the mother of 'A'isha, about what said in what has said [i.e. the Lie]. She said, 'While I was sitting with 'A'isha, a woman of the Ansar came in saying, "May Allah do such-and-such to a certain person!"' She said, 'I said, "Why?" She said, "He has mentioned the tale." 'A'isha said, "What tale?" and she told her. She said, "Have Abu Bakr and the Messenger of Allah, may Allah bless him and grant him peace, heard it?" She said, "Yes." She fainted and went she came around, she had a fever and was shaking. The Prophet, may Allah bless him and grant him peace, came and said, "What is this?" I said, "A fever which she has got on account a tale which is being talked about." She sat up and said, "If Allah, even if I were to swear to you, you would not believe me. Even I were to offer an excuse, you would not excuse me. My example is like that of Ya'qub and his sons. 'It is Allah alone who is my Help in face of the event that you describe.' (12:18)" The Prophet, may Allah bless him and grant him peace, left and then Allah sent down what He sent down and informed her. She said, "Praise belongs to Allah, but no praise to anyone else."'"