Musnad Ahmad 1153:998

'Affan and Bahz narrated to us, they said: Hammad narrated to us, from Simak, from 'Ikrimah, from 'Aisha. Bahz said: That 'Aisha said: The Messenger of Allah (may Allah bless him and grant him peace) entered upon me wearing an izar (waist-wrapper) and a rida' (upper garment). He faced the Qiblah, spread out his hands, and said: "O Allah, I am only a human being. So, whichever of Your servants I have struck or harmed, do not punish me for it." Bahz said: In it, "for it."