حَدَّثَنَا عَبْدُ الرَّحْمَنِ حَدَّثَنَا مَالِكٌ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنْ الشِّغَارِ قَالَ مَالِكٌ وَالشِّغَارُ أَنْ يَقُولَ أَنْكِحْنِي ابْنَتَكَ وَأُنْكِحُكَ ابْنَتِي
مسند امام احمد بن حنبل · Hadith 5289
It was narrated from Ibn 'Umar that the Messenger of Allah (PBUH) forbade shighaar (quid-pro-quo) marriage - Maalik said: shighaar is when a man says: Give me your daughter in marriage and i will give you my daughter in marriage.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020