What is the ruling on disposing of money mixed with lawful and unlawful sources, and is it permissible to give it as charity? And what is the ruling concerning one who dies as a result of a car accident due to speeding?

He whose earnings are tainted with unlawfulness must repent to Allah, abandon the unlawful, feel remorse, resolve not to return to it, and return rights to their owners. Charity from mixed wealth is permissible with the intention of earning reward for the lawful portion and getting rid of the unlawful, and it is best to give charity from the purest of wealth. As for giving charity from the very essence of unlawful money, it is unacceptable, for the Prophet (peace be upon him) said: "No one gives a charity from good earnings, and Allah accepts only what is good."

Whoever excessively speeds, crashes, and dies is a slayer of himself by mistake. Scholars have differed regarding the ruling on his blood money (Diyya) and expiation (Kaffara):

1. Diyya (Blood Money): First narration: Diyya is obligatory upon his 'Aqila (male relatives on the father's side) for his heirs. This is the view of Al-Awza'i and Ishaq. They cited the ruling of 'Umar (may Allah be pleased with him) in a similar incident and argued that it is an accidental felony like any other. Second narration (more accurate): His felony is in vain, and there is no Diyya in it. This is the view of most scholars, such as Rabi'a, Malik, Al-Shafi'i, and the people of opinion. They cited that the Prophet (peace be upon him) did not rule with Diyya in the story of 'Amir ibn Al-Akwa', who killed himself by mistake, and because the obligation of Diyya upon the 'Aqila is for consolation and alleviation, which does not apply to one who commits a felony against himself.

2. Kaffara (Expiation): Hanafis and Malikis: Kaffara is not obligatory. Shafi'is and Hanbalis (the relied-upon view): Kaffara is obligatory from his wealth. They cited the generality of Allah's saying: "And whoever kills a believer by mistake – then freeing a believing slave." The preponderant view: It is not obligatory, as the Prophet (peace be upon him) did not command it in the story of 'Amir ibn Al-Akwa', and because the verse "And whoever kills a believer by mistake" refers to killing another person, as indicated by the mention of Diyya for the family.