بُلُوغُ الْمَرَامِ
Bulugh al-Maram 1087
Marriage
وَعَنِ اِبْنِ عُمَرَ, { أَنَّهُ لَمَّا طَلَّقَ اِمْرَأَتَهُ، قَالَ اَلنَّبِيُّ - صلى الله عليه وسلم -لِعُمَرَ: "مُرْهُ فَلْيُرَاجِعْهَا. } مُتَّفَقٌ عَلَيْه ِ [1] .
Narrated Ibn 'Umar (RA): When he divorced his wife the Prophet (ﷺ) said to 'Umar, "Command him to take her back." [Agreed upon].
Sunnah.com reference: Book 8, Hadith 143