Changing the Fatwā
Issue No.17- If the fatwā of a Mujtahid changes, the follower must follow his latest fatwā. However, the actions that had been performed according to the previous fatwā such as the acts of worship (‘ibādāt) or the transactions (mu‘āmilāt) are valid and correct and it is not necessary to perform them again. In the same manner, if a person switches from one Mujtahid to another, it is not necessary to perform the previous acts again.
