Sahih al-Bukhari, Hadith 6184 ⓘ
Narrated `Ali: I never heard Allah's Messenger saying, "Let my father and mother be sacrificed for you," except for Sa`d (bin Abi Waqqas). I heard him saying, "Throw! (arrows), Let my father and mother be sacrificed for you !" (The sub-narrator added, "I think that was in the battle of Uhud.")
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا يَحْيَى، عَنْ سُفْيَانَ، حَدَّثَنِي سَعْدُ بْنُ إِبْرَاهِيمَ، عَنْ عَبْدِ اللَّهِ بْنِ شَدَّادٍ، عَنْ عَلِيٍّ ـ رضى الله عنه ـ قَالَ مَا سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يُفَدِّي أَحَدًا غَيْرَ سَعْدٍ، سَمِعْتُهُ يَقُولُ " ارْمِ فَدَاكَ أَبِي وَأُمِّي " . أَظُنُّهُ يَوْمَ أُحُدٍ.
also referenced under: Book 78, Hadith 208 (In-Book) & Volume 8, Book 73, Hadith 203 (USC-MSA)