It was narrated that 'Ali said:
"The Messenger of Allah (ﷺ) gave me two slaves who were brothers, and I sold one of them. He said: 'What happened with the two slaves?' I said: 'I sold one of them.' He said: 'Take him back."' (TR)
English reference (TR): Vol. 3, Book 12, Hadith 2249 (TR)
Arabic reference (TR): Book 12, Hadith 2334 (TR)