What is the ruling on a woman who, in a state of severe anger, said: "It is forbidden for me to eat such-and-such in my house"? And is expiation due upon her if she eats of this thing?

Scholars have differed concerning one who forbids something upon themselves (other than forbidding one's wife) saying: "This thing is unlawful for me." The Maliki and Shafi'i schools of thought hold that it is not an oath, and one must seek forgiveness. The Hanafi and Hanbali schools of thought hold that it is an oath, and if one then partakes of what they forbade, they must offer an expiation for an oath (kaffarat yameen), based on the verse: (O Prophet! Why do you prohibit what Allah has made lawful for you?). This latter opinion is more evident. Therefore, the questioner must offer an expiation for an oath if she wishes to eat what she forbade for herself.