Umm Kulthum, daughter of ‘Uqbah, said:
I did not hear the Messenger of Allah ﷺ making a concession for anything people say falsely except in three matters. The Messenger of Allah ﷺ would say: I do not count as a liar a man who puts things right between people, saying a word by which he intends only putting things right, and a man who says something in war, and a man who says something to his wife, or a wife who says something to her husband.

حَدَّثَنَا الرَّبِيعُ بْنُ سُلَيْمَانَ الْجِيزِيُّ، حَدَّثَنَا أَبُو الأَسْوَدِ، عَنْ نَافِعٍ، - يَعْنِي ابْنَ يَزِيدَ - عَنِ ابْنِ الْهَادِ، أَنَّ عَبْدَ الْوَهَّابِ بْنَ أَبِي بَكْرٍ، حَدَّثَهُ عَنِ ابْنِ شِهَابٍ، عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أُمِّهِ أُمِّ كُلْثُومٍ بِنْتِ عُقْبَةَ، قَالَتْ مَا سَمِعْتُ رَسُولَ اللَّهِ ﷺ يُرَخِّصُ فِي شَىْءٍ مِنَ الْكَذِبِ إِلاَّ فِي ثَلاَثٍ كَانَ رَسُولُ اللَّهِ ﷺ يَقُولُ " لاَ أَعُدُّهُ كَاذِبًا الرَّجُلُ يُصْلِحُ بَيْنَ النَّاسِ يَقُولُ الْقَوْلَ وَلاَ يُرِيدُ بِهِ إِلاَّ الإِصْلاَحَ وَالرَّجُلُ يَقُولُ فِي الْحَرْبِ وَالرَّجُلُ يُحَدِّثُ امْرَأَتَهُ وَالْمَرْأَةُ تُحَدِّثُ زَوْجَهَا " .