Is it a condition for perpetual charity (ṣadaqah jāriyah) that a person performs it before their death, or can their relatives (parents, siblings, children, spouse) perform it after their death? And what is the criterion for differentiating between ordinary charity and perpetual charity given on behalf of the deceased? And how can perpetual charity be performed by relatives after someone's death?

Continuous charity is interpreted as an endowment (waqf), because its principal is held in perpetuity and its usufruct is expended, so its origin remains continuous. This endowment is not conditional on a person endowing it himself; rather, the deceased benefits from it even if someone else endows it for him, such as praying for the deceased by an heir or a stranger, or building mosques and digging wells. As for non-continuous charity, it is what a person gives in charity without holding its principal in perpetuity, such as giving money in charity.