What is the ruling of Islamic law regarding a driver who ran over a person and caused their death, given that the family of the deceased refused blood money and accepted reconciliation out of faith in divine decree and destiny? And what is the ruling concerning his family after ten years have passed since his death without the execution of the Islamic legal ruling?

If the killing was accidental and the victim's guardians (awliya') waived the blood money (diyyah), then the driver's responsibility is absolved by performing the expiation (kaffarah). If he does not perform it before his death, it should be paid from his inheritance, or his guardians are encouraged to pay it on his behalf, based on the hadith: "Allah's debt is more worthy of being fulfilled." The expiation is freeing a believing slave; if none is found, then fasting for two consecutive months.