Musannaf Ibn Abi Shayba 37:472

Narrated to us Sharik, from Simak, from Abdullah ibn Umayrah, from the husband of Durrah, from Durrah, who said: I entered upon the Prophet, peace and blessings of Allah be upon him, while he was in the mosque, and I said: "Who is the most God-fearing of people?" He said: "The one who most commands them to do good, and most forbids them from evil, and is most connecting of them to kinship."