Narrated Ibn 'Umar (RA):

When he divorced his wife the Prophet (ﷺ) said to 'Umar, "Command him to take her back." [Agreed upon].

وَعَنِ اِبْنِ عُمَرَ, { أَنَّهُ لَمَّا طَلَّقَ اِمْرَأَتَهُ، قَالَ اَلنَّبِيُّ ‏- صلى الله عليه وسلم ‏-لِعُمَرَ: "مُرْهُ فَلْيُرَاجِعْهَا.‏ } مُتَّفَقٌ عَلَيْه ِ [1]‏ .‏