Musannaf Ibn Abi Shayba 19:257

Abu Bakr narrated to us, he said: Ghundar narrated to us, from Shu'bah, from Hammad, who said: As for the fornicator, his clothes are to be removed from him. And he recited: "And let not pity for them make you lenient in the religion of Allah." I said: Is this regarding the judgment? He said: This is regarding the judgment and the flogging.