Musannaf Ibn Abi Shaybah 30074 — A man who falsely accuses a whole

Hisham bin Urwah said that it is reported from Urwah concerning a person who slandered an entire group. He said: If he slandered them in one statement, there is one prescribed punishment on him; and if he slandered them separately, a punishment is binding on him on account of each one of them. And the same ruling applies to the thief.