Is a man's divorce of his wife valid when he is in a state of extreme anger due to a specific situation?

If you are aware of what you are saying at the time of divorce, then the divorce is effective and valid, even if it was due to an unintentional action by the wife towards her son. This divorce is disliked (makruh) if there is no sharia-compliant need for it. It is permissible to take the wife back before her 'iddah (waiting period) expires, provided this was not the third divorce. However, if you are unaware of what you are saying due to intense anger at the time of divorce, then the divorce does not occur.