Sahih Muslim | Book 9 | Hadith Number 3558

Narrated by Ibn 'Umar (Allah be pleased with them)
Ibn 'Umar (Allah be pleased with them) said that Allah's Messenger (may peace be upon him) effected separation between the two members of Banu al-'Ajlan, and said: Allah knows that one of you is a liar. Is there one to repent among you?