Musannaf Ibn Abi Shaybah

Hazrat Ash'ath's father narrates that I was present with Hazrat Abu Barzah when he carried out the hadd punishment on one of his slave girls at the threshold of his house, while a group of his companions was with him. He said: Flog her in a moderate manner between the two extremes—neither by bringing the hand all the way from behind nor by striking too lightly.