It was narrated from Ibn 'Umar that he divorced his wife when she was menstruating, and the Messenger of Allah told him to take her back. (Using translation from Nasāʾī 3558)
أَنَّهُ طَلَّقَ امْرَأَتَهُ وَهِيَ حَائِضٌ «فَأَمَرَهُ رَسُولُ اللهِ ﷺ فَرَاجَعَهَا»
It was narrated from Ibn 'Umar that he divorced his wife when she was menstruating, and the Messenger of Allah told him to take her back.
أَنَّهُ طَلَّقَ امْرَأَتَهُ وَهِيَ حَائِضٌ فَأَمَرَهُ رَسُولُ اللَّهِ ﷺ فَرَاجَعَهَا
[Machine] It is not permissible for Ibn Umar to divorce his wife while she is menstruating. The Messenger of Allah ﷺ ordered him to reconcile with her, so he reconciled with her.
لَا يَجُوزُ طَلَّقَ ابْنُ عُمَرَ امْرَأَتَهُ وَهِيَ حَائِضٌ فَأَمَرَهُ رَسُولُ اللهِ ﷺ أَنْ يُرَاجِعَهَا فَرَاجَعَهَا
"أَنَّهُ طَلَّقَ امْرَأَتَهُ وَهِىَ حائِضٌ، فأَتَى عُمَرُ النَّبِىَّ ﷺ فَذَكَرَ ذَلِكَ لَهُ فَجَعَلَهَا وَاحِدَةً".