Sahih Muslim , Book 31, Hadith 5928 (USC-MSA) ⓘ
`Abdullah b. Shaddad reported that he heard `Ali saying: Allah's Messenger did not gather his parents except in case of Sa`d b. Malik that he said to him on the Day of Uhud: Shoot an arrow, may my father and mother be taken as ransom for you.
حَدَّثَنَا مَنْصُورُ بْنُ أَبِي مُزَاحِمٍ، حَدَّثَنَا إِبْرَاهِيمُ، - يَعْنِي ابْنَ سَعْدٍ - عَنْ أَبِيهِ، عَنْ عَبْدِ اللَّهِ بْنِ شَدَّادٍ، قَالَ سَمِعْتُ عَلِيًّا، يَقُولُ مَا جَمَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَبَوَيْهِ لأَحَدٍ غَيْرَ سَعْدِ بْنِ مَالِكٍ فَإِنَّهُ جَعَلَ يَقُولُ لَهُ يَوْمَ أُحُدٍ " ارْمِ فِدَاكَ أَبِي وَأُمِّي " .
also referenced under: Book 44, Hadith 63 (In-Book) & Hadith 2411 (Reference)