The Messenger of Allah ﷺ purchased a slave in exchange for two slaves.
حدثنا أبو سعيد حدثنا ليث حدثنا أبو الزبير
اشترى رسول الله ﷺ عبدا بعبدين
No references are available.
Its isnad is sahih. It also appeared previously at 14708, where it is one hadith, and the slave he bought with two slaves is this same one.