Musnad Ahmad 30:1993

Abu Ahmad narrated to us, he said: Sufyan narrated to us, from Ibn Dhakwan, from al-A’raj, from Abu Hurairah, from the Prophet, peace and blessings of Allah be upon him, who said: "Allah, the Almighty and Majestic, says: 'The son of Adam insults Me, and it is not fitting for him to insult Me. And he denies Me, and it is not fitting for him to deny Me. As for his insulting Me, it is his saying: "I have a child." And as for his denying Me, it is his saying: "He will not restore me as He began me."'"