Musannaf Ibn Abi Shayba 13:1520

Abu Bakr narrated to us, he said: Waki’ narrated to us, from ‘Umar ibn Dharr, from Muhammad ibn ‘Abd Allah ibn Qārib al-Thaqafi, from his father, that he bought a slave girl from a man for four thousand [dirhams], who had miscarried a fetus from her master. That reached ‘Umar, so he came to him and struck him with the whip, and said: "After your flesh has mixed with their flesh, and your blood has mixed with their blood, you sell them? May Allah curse the Jews; the fats were forbidden to them, so they sold them and consumed their prices."