My sister was divorced by her husband for the first time because she said to his mother: 'God is sufficient for me, and He is the best disposer of affairs.' Then he divorced her for the second time when he was working in the field and had a disagreement with the employer. He swore by divorce that he would not return to work, but he returned to work after two days. He went to a sheikh who advised him to take her back. Last night, he asked her to give him some money and said to her: 'If the amount is this much, then spend it.' She spent it according to his opinion on the prices, and he got angry because she spent it at a low price, while he had knowledge of the exchange rate, and she spent it at the price he wanted. He then divorced her for the third time. What is the ruling on this?