Musnad Ahmad 1153:1821

Bahz narrated to us, he said: Hammad narrated to us, from Abd al-Rahman ibn al-Qasim, from his father, from Aisha, that the Messenger of Allah, peace and blessings of Allah be upon him, said: "Indeed, the people with the severest punishment on the Day of Resurrection are those who imitate the creation of Allah, the Almighty and Majestic."