The Book of Virtue, Good Manners and Joining of the Ties of Relationship (Kitab Al-Birr was-Salat-I-wa'l-Adab)

Muslim :: Book 32 : Hadith 6205

Anas b. Malik reported Allah's Messenger (may peace be upon him) as saying: Neither nurse mutual hatred, nor jealousy, nor enmity, and become as fellow. brothers and servants of Allah. It is not lawful fora Muslim that he should keep his relations estranged with his brother beyond three days.