What is the expiation for swearing an oath?

Question:
May Allah reward you. This questioner says: I had a dispute with my uncle and I said, "I will not greet him. If I greet him, my wife is divorced and I am out of the religion of Islam." But I greeted him several times over several days, and I am now leaving for my country. What should I do? Please advise us. May Allah reward you with good.

Answer:
You made a mistake in this statement; you combined two prohibited things. The first prohibition is the divorce of your wife, and the second prohibition, which is more severe, is your disavowal of Islam. If your intention in this was that you would refrain from speaking to him, and you did not intend divorce but rather intended an oath, then you must perform the expiation for an oath by feeding ten poor people, and your oath regarding the divorce is annulled. As for your disavowal of Islam, you must seek forgiveness and repent to Allah the Exalted and Majestic, and do not return to such a thing. Yes.