What is the ruling on using purified sewage water for ritual purification?

Question:
He says: Honorable Shaykh, may Allah grant you success, there are devices that filter sewage water and reprocess it until it becomes sweet water. Is it permissible to use it for ritual purification? This issue was presented to the fiqh academies and the Council of Senior Scholars. Research was conducted on it, but there is still hesitation in the mind because its origin is impure.

Answer:
Does an impure substance become pure through transformation? They say that an impure substance does not become pure through transformation because its origin is impure. Some say that as long as it has transformed, it becomes pure. The issue requires verification and research, and it remains so to this day. However, using it for other than ritual purification is permissible, such as using it to water gardens or to water animals. There is nothing wrong with that. Its use for ritual purification is a matter of hesitation. Yes.