Narrated 'Ali bin Abi Talib:
"I never heard the Prophet (ﷺ) mentioning both of his parents being ransomed for anyone except for Sa'd. On the Day of Uhud, I heard him saying: 'Shoot, Sa'd, may my father and mother be ransomed for you." (ID)
English reference (ID): Vol. 1, Book 46, Hadith 3755 (ID)
Arabic reference (ID): Book 49, Hadith 4121 (ID)