What is the ruling on one who swore to abandon a sin and made the acceptance of the expiation for his oath contingent upon paying a specific sum of money to feed the poor and needy upon employment, then committed the sin before possessing the money or becoming employed?

A supplication for the non-acceptance of expiation is not legislated and constitutes an transgression against Allah, because it is a request for Allah not to accept an act of obedience. Nothing is necessitated by this supplication, nor is charity with the amount prayed for non-acceptance necessitated, unless one gives it as charity, for this is not a vow. What is obligatory is the expiation for an oath, and one should ask Allah for acceptance as compensation for the supplication for non-acceptance.