What is the ruling of Islamic law concerning how to absolve the liability of a deceased father who gifted the house to the questioner's mother and divided the money between her and the questioner, knowing that the questioner's siblings do not adhere to Islamic law and disowned him because of this matter, and what are the implications for the questioner if he spends part of the inherited money?

The ruling on this matter involves several points:

1. Ruling on the Islam of the Children: They follow the father in religion, so they are Muslims unless they apostatize after reaching puberty. An apostate neither inherits nor is inherited from, but if he returns to Islam before the death of the inheritor, he becomes an heir. 2. The Deceased's Brother and Inheritance: The brother does not inherit if the deceased has children. 3. Ruling on a Person Gifting Their Money to Some Heirs: This has been answered previously. 4. Spending from Inheritance Money Without Knowing the Amount: The one who spent must investigate and give each heir their rightful share.