Sunan Ibn Majah
711
Sahih+2

It was narrated from 'Awn bin Abu Juhaifah that his father said:"I came to the Messenger of Allah in Abtah, when he was in a red tent. Bilal came out and gave the call to prayer, turning around and putting his fingers in his ears

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi