Muwatta Malik #1315
Divorce
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ أَبِي النَّضْرِ، مَوْلَى عُمَرَ بْنِ عُبَيْدِ اللَّهِ عَنْ عَامِرِ بْنِ سَعْدِ بْنِ أَبِي وَقَّاصٍ، عَنْ أَبِيهِ، أَنَّهُ كَانَ يَعْزِلُ .
Yahya related to me from Malik from Abu'n-Nadr, the mawla of Umar
ibn Ubaydullah from Amir ibn Sad ibn Abi Waqqas from his father that
he used to practise coitus interruptus.
About Muwatta Malik
This hadith is #1315 from Muwatta Malik, in the Book of Divorce.