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 6217
This hadith has been narrated on the authority of A'mash with the same chain of transmit ters (and the words are):" Don't sever relations of kinship, don't bear enmity against one another, don't bear aversion against one another and don't feel envy against the other and live as fellow-brothers as Allah has commanded you.