Sa'd ibn Abi Waqqas accepted Islam very young. He was deeply devoted to his mother.
❝ HadithSa'd's mother swore she would not speak to anyone, eat or drink until he gave up his religion. She said: you claim Allah commands you to be good to your parents; I am your mother and I command you this. Three days passed this way until she grew weak. Then Allah revealed this verse.Sahih Muslim 1748 · Sahih
وَوَصَّيۡنَا ٱلۡإِنسَٰنَ بِوَٰلِدَيۡهِ حُسۡنٗاۖ وَإِن جَٰهَدَاكَ لِتُشۡرِكَ بِي مَا لَيۡسَ لَكَ بِهِۦ عِلۡمٞ فَلَا تُطِعۡهُمَآۚ إِلَيَّ مَرۡجِعُكُمۡ فَأُنَبِّئُكُم بِمَا كُنتُمۡ تَعۡمَلُونَ
“And We have enjoined upon man goodness to parents. But if they endeavor to make you associate with Me that of which you have no knowledge, do not obey them. To Me is your return, and I will inform you about what you used to do.”
Surah Al-'Ankabut 29:8
Translation: Saheeh International (QuranEnc)
The verse says two things together: be good to your parents, and do not obey them in associating partners with Allah. Sa'd stood firm in his faith and kept his respect for his mother.