‘Alqamah bin Wa’il said: “My father told me: ‘I prayed behind the Messenger of Allah صلی اللہ علیہ وآلہ وسلم and I saw him raise his hands when he started to pray, and when he bowed, and when he said: “Sami’ Allahu liman Hamidah (Allah hears the one who praises Him)” like this.” And (one of the narrators) Qais pointed toward his ears. (Sahih)