Musnad Ahmad 1273:1

Hushaym narrated to us, from Abu Bishr, from Abu al-Malih ibn Usamah, who said: Abdullah ibn Utbah ibn Abi Sufyan informed me, my paternal aunt, Umm Habibah bint Abi Sufyan, narrated to me: "That the Messenger of Allah, peace and blessings of Allah be upon him, when he was with her on her day or her night, and he heard the mu'adhdhin, he would say as the mu'adhdhin says."