Musannaf Ibn Abi Shayba 2:242

Abu Bakr narrated to us, he said: Shababa narrated to us, from Shu'bah, from Abu Bishr, from Umm Habibah. And 'Affan narrated to us, he said: My father narrated to us, from 'Awanah, from Abu Bishr, from Abu al-Malih, from 'Abdullah ibn 'Utbah, from Umm Habibah, from the Prophet, peace and blessings of Allah be upon him, that when he heard the caller to prayer (mu'adhdhin), he would say as he says until he fell silent.