From Sahih Muslim (Hadith 3469):
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: Muslim 3469