It was narrated that:
Ibn Umar said: "The Messenger of Allah forbade Shighar. Shighar is when a man says to another man: 'Marry your daughter or sister to me, on condition that I will marry my daughter or sister to you,' and they do not give any dower (i.e. neither of them give other the dower)." (RU)
English reference (RU): Vol. 3, Book 9, Hadith 1883 (RU)
Arabic reference (RU): Book 9, Hadith 1957 (RU)