What is the ruling on saying, "By Allah, I do not want it" to food that has been offered to me and then eating it, or saying, "By Allah, you will not wash the dishes" in family gatherings and then washing them? Is expiation incumbent upon the one who said it, or upon the one who broke the oath, and what is the expiation for such an oath?

A Muslim must beware of excessive swearing and guard his oaths, as Allah Almighty said: "And guard your oaths." The oaths mentioned do not require expiation, because they are uttered without conscious intent or will, and are considered "laghw al-yameen" (vain oaths) for which there is no expiation. If expiation becomes necessary, it is incumbent upon the one who swore the oath, not the one for whom the oath was sworn, as mentioned by Ibn Qudamah and Ibn Taymiyyah, because the one who swore is the one who broke the oath.