Their despairing of him is their sensing that estimation would not be placed in charge of them and they would not be permitted to enjoy his exigencies or judgement. The most senior of them who reminded them of the pledge they had given to their father, [the pledge] being the conviction of faith, and [who reminded them] of their failure regarding Joseph when estimation had ruled, was reflection (fikr); that is why the exegetes he was the one who made the fairest decision regarding Joseph and prevented them from killing him. As for his words, So I will never leave this land until my father permits me, this means I shall not make any move without the judgement of the intellect, as opposed to estimation, until I die.