Musnad Abu Ya'la al-Mawsili 219:25

Zuhayr narrated to us, Affan ibn Muslim narrated to us, Abu 'Awanah narrated to us, from Abu Bishr, from Abu Mulayh, from Abdullah ibn Utbah, from his paternal aunt, Umm Habibah: That the Messenger of Allah, peace and blessings of Allah be upon him, used to, when he heard the caller to prayer (mu'adhdhin), say as he says, until he fell silent.