Musannaf Ibn Abi Shaybah

Hazrat Ibn Abi Rabee'ah narrates that Hazrat Umar called us, the young men of Quraysh, regarding those slave women who had committed adultery. As for the slave women belonging to the government, we lashed each of them fifty lashes.

Hazrat Umar bin Shurahbeel narrates that Hazrat Ma'qil Muzani came to Hazrat Abdullah bin Mas'ud and said: Indeed, my slave-girl has committed adultery. So he said: Flog her with fifty lashes.

Yunus narrates that Hasan Basri said: When a slave confesses to adultery, his master will give him fifty lashes.