English translation
710. 'Abdur-Rahmân bin Sa'd bin 'Ammâr bin Sa'd, who was the Mu'adh-dhin[1] of the Messenger of Allâh ﷺ, narrated from his grandfather, that the Messenger of Allâh ﷺ commanded Bilâl to put his fingers in his ears when calling the Adhân, and he said, "It makes the voice louder." (Da'if)
