What is the ruling regarding a husband saying to his wife, "You are divorced," in a state of extreme anger, and how can he reverse it if it is counted as one divorce, and is it permissible for them to remain in the same house?

A husband's statement to his wife, "You are divorced," is an explicit pronouncement that effects divorce. If this pronouncement is not the third divorce, the husband may take his wife back without a new marriage contract. It is recommended by the majority of jurists to have witnesses to the reconciliation. As for the manner of reconciliation, it is best and most prudent to do so verbally, such as by saying, "I have taken you back," and there is no harm in adding, "under my responsibility," along with having witnesses. Husbands and wives should beware of anger and making divorce a means to solve problems.