Musannaf Ibn Abi Shayba 28:29

Khalid ibn Makhlad narrated to us, he said: Ishaq ibn Hazim narrated to us, he said: Uthman ibn Muhammad ibn al-Akhnas narrated to us, from Isma'il ibn Muhammad ibn Sa'd, he said: Sa'd said: "Indeed, authority does not increase a person in his religion any good."