Abu Dawud Book 2, Hadith Number 745.
Chapter : Not known.
Narated By AbuHurayrah : If I were in front of the Prophet (PBUH), I would see his armpits. Ibn Mu’adh added that Lahiq said: Do you not see, AbuHurayrah could not stand in front of the Prophet (PBUH) while he was praying. Musa added: When he uttered the takbir, he raised his hands.