Is it obligatory to re-distribute the expiations (kaffarat) for an oath (yameen) and a prohibited act during Ihram (mahzhur ihram) due to the agent's ignorance of their cause and her lack of intention during the feeding, despite the principal having specified the value of feeding for 16 needy persons?

The questioner is not obligated to re-issue the two aforementioned expiations because his sole intention, without an agent, is sufficient. As for the issue of giving the value [of food] in expiations, it is a matter of considerable scholarly dispute. If the questioner gave the value, imitating those who permit it and believing it to be sufficient, then there is no blame upon him.