Muwatta Malik, Book 56, Hadith 1828 (In-Book)

Malik related to me from Safwan ibn Sulaym that a man asked the Messenger of Allah, may Allah bless him and grant him peace, "Can I lie to my wife, Messenger of Allah?" The Messenger of Allah, may Allah bless him and grant him peace, said, "There is no good in lying." The man said, "Messenger of Allah! Shall I make her a promise and tell her?" The Messenger of Allah, may Allah bless him and grant him peace, said, "It will not be held against you."

حَدَّثَنِي مَالِكٌ، عَنْ صَفْوَانَ بْنِ سُلَيْمٍ، أَنَّ رَجُلاً، قَالَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم أَكْذِبُ امْرَأَتِي يَا رَسُولَ اللَّهِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لاَ خَيْرَ فِي الْكَذِبِ ‏"‏ ‏.‏ فَقَالَ الرَّجُلُ يَا رَسُولَ اللَّهِ أَعِدُهَا وَأَقُولُ لَهَا فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لاَ جُنَاحَ عَلَيْكَ ‏"‏ ‏.‏

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also referenced under: Book 56, Hadith 15 (USC-MSA)