Abu Dawud
General Behavior
Book Number: 036 / Hadith Number: 4902
Narated By Umm Kulthum bint Uqbah al-Umawiyyah : The Prophet (pbuh) said: He who forged in order to put things right between two persons did not lie. The version by Ahmad ibn Muhammad and Musaddad has: The liar is not the one who puts things right between people, saying what is good and increasing good.