Muwatta Malik #1513
Judgements
Yahya said that Malik related from Ibn Shihab from Salim ibn
Abdullah ibn Umar from his father that Umar ibn al-Khattab said,
"What's the matter with men who have intercourse with their slave-
girls and then dismiss them? No slave-girl comes to me whose master
confesses that he has had intercourse with her but that I connect her
child to him, whether or not he has practised coitus interruptus or
stopped having intercourse with her."
About Muwatta Malik
This hadith is #1513 from Muwatta Malik, in the Book of Judgements. Muwatta Malik contains 1,985 hadiths across 61 books.