(12:58) And the brothers of Joseph came [seeking food], and they entered upon him; and he recognized them, but he was to them unknown. (12:59) And when he had furnished them with their supplies, he said, "Bring me a brother of yours from your father. Do not you see that I give full measure and that I am the best of accommodators? (12:60) But if you do not bring him to me, no measure will there be [hereafter] for you from me, nor will you approach me." (12:61) They said, "We will attempt to dissuade his father from [keeping] him, and indeed, we will do [it]." (12:62) And [Joseph] said to his servants, "Put their merchandise into their saddlebags so they might recognize it when they have gone back to their people that perhaps they will [again] return." (12:63) So when they returned to their father, they said, "O our father, [further] measure has been denied to us, so send with us our brother [that] we will be given measure. And indeed, we will be his guardians." (12:64) He said, "Should I entrust you with him except [under coercion] as I entrusted you with his brother before? But Allah is the best guardian, and He is the most merciful of the merciful."
