I never saw the Prophet ﷺ saying, "Let my parents sacrifice their lives for you," to any man after Saʿd. I heard him saying (to him), "Throw (the arrows)! Let my parents sacrifice their lives for you."
سَمِعْتُ عَلِيًّا ؓ يَقُولُ مَا رَأَيْتُ النَّبِيَّ ﷺ يُفَدِّي رَجُلاً بَعْدَ سَعْدٍ سَمِعْتُهُ يَقُولُ ارْمِ فِدَاكَ أَبِي وَأُمِّي
[Machine] I have never seen the Messenger of Allah ﷺ sacrificing anyone except Saad, for I heard him saying: "O Allah, I sacrifice for you my father and my mother."
مَا رَأَيْتُ رَسُولَ اللهِ ﷺ يُفَدِّي أَحَدًا غَيْرَ سَعْدٍ فَإِنِّي سَمِعْتُهُ يَقُولُ «ارْمِ فِدَاكَ أَبِي وَأُمِّي»
"عَنْ عَلِى قَالَ: مَا سَمِعْتُ رسول الله ﷺ يَفْدِى أحَدًا بِأَبَويْهِ إلَّا سَعْدًا، فإنى سَمِعْتُه يَقولُ يَومَ أُحُدٍ ارْمِ سَعْدُ فِداكَ أَبِى وَأُمِّى".