How is a will written, for whom is it obligatory, what is the ruling on one who dies without a will, what should it include, what is forbidden in it, and does it start from a certain age?

A will (wasiyya) becomes obligatory if a legal right is attached to it, the loss of which is feared, such as a debt, a trust (amanah), or zakat. It is recommended within the limit of one-third for relatives who are not heirs, the poor, and acts of charity. No specific wording is required for it; rather, any expression that indicates the testator's intention suffices. It is recommended to write it down and have it witnessed. It is prohibited if it exceeds one-third, or if it is for an heir, or if its intention is to harm the heirs. No specific age is required for it; thus, it is valid from a discerning minor. It is a condition that the testator owns the bequeathed item, and that the beneficiary is someone who is legally entitled to own it.