كتاب الأدب
Read the English translation first, with the original Arabic directly underneath.
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.
لاَ أَعُدُّهُ كَاذِبًا الرَّجُلُ يُصْلِحُ بَيْنَ النَّاسِ يَقُولُ الْقَوْلَ وَلاَ يُرِيدُ بِهِ إِلاَّ الإِصْلاَحَ وَالرَّجُلُ يَقُولُ فِي الْحَرْبِ وَالرَّجُلُ يُحَدِّثُ امْرَأَتَهُ وَالْمَرْأَةُ تُحَدِّثُ زَوْجَهَا