Abu Dawud Book 36, Hadith Number 4782.
Chapter : Not known.
Narated By AbuUmamah : The Prophet (PBUH) said: I guarantee a house in the surroundings of Paradise for a man who avoids quarrelling even if he were in the right, a house in the middle of Paradise for a man who avoids lying even if he were joking, and a house in the upper part of Paradise for a man who made his character good.