It was narrated that Muttalib that is, Ibn Abu Wada'ah said: "The Messenger of Allah said: 'The night prayers are to be offered) two by two, Say the Tashah-hud after each two Rak' ah, and raise your hands in all humility like one who is poor and needy and say: 'Allahummaghfirli (0 Allah, forgive me).' And whoever does not do that, it is imperfect." (Da'if)