What is the ruling regarding a husband's oath of divorce—this being the second divorce—if he swore concerning an matter he believes his wife did not do, while the wife asserts that she did it perfectly?

If the father's breaking of his oath is not evident, then the divorce does not occur, because the original state is the continuation of the marital bond. If the breaking of the oath is proven, then scholars have differed on whether the divorce occurs, and Sheikh al-Islam Ibn Taymiyyah favored the opinion that it does not occur. If this were the second divorce and it did occur, he can reconcile with his wife before her waiting period (iddah) expires. The father should be advised to refrain from swearing by divorce.