I never heard the Prophet ﷺ mention both his father and mother together as a ransom for anyone except Saad bin Abu Waqqas, for I heard him say on the day of Uhud, "Shoot, Saad, may my father and mother be your ransom."
حدثنا يعقوب وسعد قالا حدثنا أبي عن أبيه عن عبد الله بن شداد قال سعد ابن الهاد سمعت
ما سمعت النبي ﷺ يجمع أباه وأمه لأحد غير سعد بن أبي وقاص فإني سمعته يقول يوم أحد ارم يا سعد فداك أبي وأمي
Its isnad is sahih. Yaqub and Saad are the two sons of Ibrahim bin Saad bin Ibrahim bin Abdul-Rahman bin Awf, and they are both trustworthy, from a household all of whom were trustworthy, as Aqeeli said. Abdullah bin Shaddad bin Had Laythi was trustworthy, one of the senior Tabiin.As for his saying, "Saad said, Ibn Hadi" this reflects Imam Ahmad's precision and his eagerness to specify the exact wording used by each narrator. He narrated the hadith from the two brothers, Yaqub and Saad. Yaqub, in his narration, transmitted it from Abdullah bin Shaddad without mentioning the rest of his lineage, while Saad transmitted it from Abdullah bin Shaddad bin Had, so Ahmad specifically noted that Saad added the complete lineage. This point was missed by the editor of Ha, who recorded it as "Saad bin Had said," treating it as a single name.The hadith was narrated by Tirmidhi 4/335 through the route of Thawri, from Saad bin Ibrahim bin Abdul-Rahman bin Awf, from Abdullah bin Shaddad, and he said, "This is a sahih hadith." His commentator said, "The two Shaykhs (Bukhari and Muslim) also recorded it."It will come again through the narration of Thawri, similar to Tirmidhi's narration, at 1017, and through the narration of Shubah from Saad bin Ibrahim at 1047, and through the narration of Masaar from Saad bin Ibrahim at 1356.