Abu Dawud
General Behavior
Book Number: 036 / Hadith Number: 4866
Narated By Jabir ibn Abdullah AbuTalhah ibn Sahl al-Ansari : The Prophet (pbuh) said: No (Muslim) man will desert a man who is a Muslim in a place where his respect may be violated and his honour aspersed without Allah deserting him in a place here he wishes his help; and no (Muslim) man who will help a Muslim in a place where his honour may be aspersed and his respect violated without Allah helping him in a place where he wishes his help.