Asalaamu alaykum!

Reported by Anas bin Malik (RA): The Prophet (peace be upon him) said, “Do not harbour grudge against one another, nor jealousy, nor enmity; and do not show your backs to one another; and become as fellow brothers and slaves of ALLAH. It is not lawful for a Muslim to avoid speaking with his brother beyond three days.” (Bukhari and Muslim)