Is it permissible to discharge the debt of a poor and indebted person in lieu of expiation for an oath, by analogy with the impermissibility of discharging it in lieu of Zakat?

Remitting a debt in lieu of expiation (kaffara) or zakat is impermissible, because obligatory charities due to the poor according to Islamic law—such as zakat and expiations—require transference of ownership, and debt remission or discharge is not a transference of ownership. Jurists have stipulated that discharge does not suffice for expiations. Although discharging a debtor does not suffice for expiation, it is a righteous deed for which its doer will be rewarded, as Allah commanded granting respite to the one in hardship or giving charity to him, and promised the one who gives charity shade on the Day of Resurrection.