Mishkat al-Masabih #61

Ibn Mas'ud reported God's messenger as saying, “There is none of you who does not have his partner from among the jinn and his partner from among the angels put in charge of him.” The hearers asked, “Does this also apply to you, messenger of God?” He replied, “It applies to me too, but God has helped me against him and he has accepted Islam, so he commands me to do only what is good.” Muslim transmitted it.