It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "It is not lawful for a believer to cut himself off from his brother for more than three days."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Nafi' (may Allah have mercy on him) except Ibrahim bin Abi Usayd."
Hadith Referenceالمعجم الأوسط / باب الميم / 9145
Hadith Takhrij«أخرجه مسلم فى «صحيحه» برقم: 2561، وأحمد فى «مسنده» برقم: 5455، والطبراني فى «الأوسط» برقم: 7032»