Malik related to me from Yahya ibn Said that Sulayman ibn Yasarinformed him that Abdullah ibn Abbas ibn Abi Rabia al-Makhzumi said,"Umar ibn al-Khattab gave me orders about the slaves of Quraysh and weflogged some of the slave-girls of the muslim lands fifty times eachfor fornication." (FR)
USC-MSA web (English) reference: Book 41, Hadith 16 (FR)
Arabic reference (FR): Book 41, Hadith 1518 (FR)