falls short in his religion cannot be trusted not to fall short in carrying out his duties. As for moral integrity, it means that he does not do what people would criticize him for; if he does what people would criticize him for, then he is not upright.
If one appoints a sinful person as executor, the established position is that the appointment is invalid, because he is not trustworthy. Allah, Exalted is He, says:
“O you who believe, if a sinful person comes to you with some news, verify it.” [Al-Hujurat: 6]
Thus, the report of a sinful person is not accepted, nor are his actions approved. However, it should be said that this is based on the matter of testimony: if we accept the testimony of a sinful person whose testimony is deemed acceptable, then we accept his appointment as executor. For there may be a sinful person who is nevertheless trustworthy with regard to financial matters. Suppose, for example, that he smokes tobacco; smoking tobacco is persistence in a minor sin, so he is sinful. Yet if this smoker is a sensible, judicious, trustworthy, and responsible man, and we say that it is not valid to appoint him as executor, this is undoubtedly open to question. Therefore, we say that making uprightness a condition requires further detail: if the lack of uprightness undermines his management, then it is a condition; but if it does not undermine his management, and he manages matters fully and without any problem whatsoever, then it is not a condition. This is the correct understanding of his statement, “upright.”
His statement, “responsible,” means one who manages properly what has been entrusted to him. Allah, Most High, says concerning orphans:
“Then, if you perceive in them sound judgment, deliver to them their wealth.” [Al-Nisa’: 6]
Sound judgment is indispensable, but the required sound judgment varies according to the matter at hand. A person responsible in financial matters is one who conducts buying, selling, renting, and leasing properly, without suffering an unfair loss beyond what is customary.
And a person responsible in the guardianship of marriage—according to the view that appointing an executor for it is valid—