Sahih al-Bukhari #5112 · Wedlock, Marriage (Nikaah)

Sahih al-BukhariIbn Umar
Sahih al-Bukhari · Book 67 · Wedlock, Marriage (Nikaah)
Sahih al-Bukhari · كتاب 67 · كتاب النكاح
Allah's Messenger (ﷺ) forbade Ash-Shighar, which means that somebody marries his daughter to somebody else, and the latter marries his daughter to the former without paying Mahr
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله
عنهما ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنِ الشِّغَارِ، وَالشِّغَارُ أَنْ يُزَوِّجَ الرَّجُلُ ابْنَتَهُ عَلَى أَنْ يُزَوِّجَهُ الآخَرُ ابْنَتَهُ، لَيْسَ بَيْنَهُمَا صَدَاقٌ‏.‏
Reference : Sahih al-Bukhari 5112In-book reference : Book 67, Hadith 49