Musannaf Ibn Abi Shayba 33:300

Hussain bin Ali narrated to us, from Za'idah, from Abdul-Malik bin Umayr, who said: The family of Abdullah informed me that Abdullah bequeathed to his son, Abd al-Rahman, and said: "I advise you to fear Allah, and let your house suffice you, and restrain your tongue, and weep over your sin."