Alqamah bin Wa'il said:
My father told me: 'I prayed behind the Messenger of Allah (ﷺ) 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 towards his ears.