Does an oath of divorce uttered in a state of extreme anger take effect, and is it considered an irrevocable or revocable divorce? What are the steps to reconcile with one's wife, and how long is the waiting period (iddah) after the husband pronounces this to his wife for the first time, following 15 years of marriage?

If you uttered the words of divorce while not comprehending what you were saying due to extreme anger, then nothing is binding upon you. However, if you were aware of what you were saying:

- If you said, "Go away from me," and did not intend divorce but rather expulsion, then subsequently uttered the words of divorce, one divorce becomes binding upon you.

- If you intended divorce by saying, "Go away from me," and then uttered the words of divorce again, then according to the majority of scholars, two divorces become binding upon you.

If you had not divorced her before, you can take her back before the expiry of her 'iddah (waiting period) (three menstrual cycles, or three months for a non-menstruating woman, or delivery for a pregnant woman). The 'revocation' (of divorce) is valid through words or through intercourse and its مقدمات (preliminaries). However, if the 'iddah has expired, a new marriage contract fulfilling the conditions is necessary.