Prayer (Kitab Al-Salat)

Dawud :: Book 2 : Hadith 593

Narrated Abdullah ibn Umar:

The Prophet (peace_be_upon_him) said: There are three types of people whose prayer is not accepted by Allah: One who goes in front of people when they do not like him; a man who comes dibaran, which means that he comes to it too late; and a man who takes into slavery an emancipated male or female slave.