Sahih Muslim #6633 · The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship

Sahih MuslimHumaid b. 'Abd al-Rahman b. 'Auf reported that his mother Umm Kulthum daughter of 'Uqba b. Abu Mu'ait
Sahih Muslim · Book 45 · The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship
Sahih Muslim · كتاب 45 · كتاب البر والصلة والآداب
A liar is not one who tries to bring reconciliation amongst people and speaks good (in order to avert dispute), or he conveys good. Ibn Shihab said he did not hear that exemption was granted in anything what the people speak as lie but in three cases: in battle, for bringing reconciliation amongst persons and the narration of the words of the husband to his wife, and the narration of the words of a wife to her husband (in a twisted form in order to bring reconciliation between them).
حَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى، أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، أَخْبَرَنِي حُمَيْدُ بْنُ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، أَنَّ أُمَّهُ أُمَّ كُلْثُومٍ بِنْتَ عُقْبَةَ بْنِ أَبِي مُعَيْطٍ، وَكَانَتْ، مِنَ الْمُهَاجِرَاتِ الأُوَلِ اللاَّتِي بَايَعْنَ النَّبِيَّ صلى الله عليه وسلم أَخْبَرَتْهُ أَنَّهَا سَمِعَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم وَهُوَ يَقُولُ ‏
"‏ لَيْسَ الْكَذَّابُ الَّذِي يُصْلِحُ بَيْنَ النَّاسِ وَيَقُولُ خَيْرًا وَيَنْمِي خَيْرًا ‏"‏ ‏.‏ قَالَ ابْنُ شِهَابٍ وَلَمْ أَسْمَعْ يُرَخَّصُ فِي شَىْءٍ مِمَّا يَقُولُ النَّاسُ كَذِبٌ إِلاَّ فِي ثَلاَثٍ الْحَرْبُ وَالإِصْلاَحُ بَيْنَ النَّاسِ وَحَدِيثُ الرَّجُلِ امْرَأَتَهُ وَحَدِيثُ الْمَرْأَةِ زَوْجَهَا ‏.‏
Reference : Sahih Muslim 6633In-book reference : Book 45, Hadith 130