Hadith 78:208
Narrated `Ali:
I never heard Allah's Messenger (ﷺ) 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
Original Reference: Sahih al-Bukhari 6184