Alqamah ra, a sahaba from BADR was at his death bed; but he couldn’t recite the Kalimah. The matter was put before the Prophet pbuh to address. The Prophet pbuh inquired about the mother of Alqamah ra. Finally, she was called.
The Prophet pbuh asked her if she was happy with her son. The lady replied, “I’ve no complain about his religion, he’s very pious but whenever he addresses me, he does it in a very rude manner.”
The Prophet pbuh asked her to forgive Alqamah ra. She refused to do so. Prophet pbuh asked the people to bring firewood so that Alqamah ra would be burnt alive else he’d die without kalimah and would go straight to hell!
Hearing this, the mother decided to forgive her son and at that very moment Alqamah ra proclaimed the shahadah.
Alqamah was the sahaba of greatest stature, he fought in Badr! Allah has forgiven all of their sins and granted them mercy in the world itself yet still his behaviour towards his mother was the deciding factor between him being in Heaven and Hell.