Hadith #3429 (Sunan al-Nasa'i)
Book: The Book of Divorce
Narrator(s): Abu Ja'far al-Khutami, 'Umayr bin Yazid عمير بن يزيد أبو جعفر الخطمي, al-Rabi' bin Sulaiman الربيع بن سليمان, Ammara bin Khuzayma bin Thabit عمارة بن خزيمة بن ثابت الأنصاري الأوسي, Asad bin Musa - Asad al-Sunnah أسد بن موسى بن إبراهيم - أسد السنة, Hammad bin Salama حماد بن سلمة, Kathir bin al-Sa'ib

“I heard my father Ka’b bin Malik -who was one of the three whose repentance was accepted- say: ‘The Messenger of Allah sent word to me and to my two companions saying: The Messenger of Allah commands you to keep away from your wives. I said to his envoy: Shall I divorce my wife, or what should I do? He said: No, just keep away from her, and do not approach her. I said to my wife: Go to your family and stay with them. So she went to them.'”

Source: https://parallelquran.com/hadith/sunan-al-nasai-3429/