(7) باب تَحْرِيمِ نِكَاحِ الشِّغَارِ وَبُطْلاَنِهِ
Abu Huraira (Allah be pleased with him) reported that Allah's Messenger (ﷺ) prohibited Shighar. Ibn Numair added:
Shighar means that a person should say to the other person: Give me the hand of your daughter in marriage and I will (in return) marry my daughter to you; or merry me your sister, and I will marry my sister to you.
Reference: Sahih Muslim 1416 a
In-book reference: Book 16, Hadith 71
USC-MSA web (English) reference(deprecated numbering scheme): Book 8, Hadith 3299