The Prophet ﷺ forbade shighar.Malik said, "Shighar is when a man says, 'Marry me your daughter and I will marry you mine.'"
حدثنا عبد الرحمن حدثنا مالك عن نافع
أن النبي ﷺ نهى عن الشغار قال مالك والشغار أن يقول أنكحني ابنتك وأنكحك ابنتي
Its isnad is sahih, and it is a longer version of 4918. It has already appeared through the narration of Malik without the tafsir of shighar, at 4526, and through the narration of Ubaydullah from Nafi, which includes its tafsir from the words of Nafi, at 4692.