Musannaf Ibn Abi Shayba 33:1427

Abu al-Ahwas narrated to us, from Abu Ishaq, from Abdullah ibn Abi al-Husayn, who said: The Messenger of Allah (ﷺ) said: "Shall I not guide you to the best of the character of the people of the world and the Hereafter? It is to pardon the one who wronged you, to give to the one who deprived you, and to maintain ties with the one who severed them. And whoever wishes for his lifespan to be extended and his wealth to be increased, then let him fear Allah, his Lord, and let him maintain his ties of kinship."