The Prophet ﷺ purchased a slave in exchange for two slaves.
حدثنا يزيد بن خالد الهمداني وقتيبة بن سعيد الثقفي أن الليث حدثهم عن أبي الزبير
أن النبي ﷺ اشترى عبدا بعبدين
No references are available.
Muslim narrated it in "Musaqat," chapter on the permissibility of selling animals for animals of the same kind, with disparity in quantity, hadith no. 1602, from Qutayba through him.