Can semen be considered a purifier for pre-seminal fluid, based on Sheikh al-Islam Ibn Taymiyyah's opinion that any substance that removes impurity purifies as long as its filth is removed, knowing that semen is pure and pre-seminal fluid is impure, and that semen is much more abundant than pre-seminal fluid and consumes it if mixed with it?

According to the consensus of scholars, pre-seminal fluid (madhy (definition)) is impure. The majority of scholars hold that it is obligatory to purify it from the body and clothes by washing. However, Sheikh al-Islam Ibn Taymiyyah is of the view that sprinkling water (nadh) suffices for it. As for considering semen (manyi) a purifier for pre-seminal fluid, this is incorrect, because semen does not remove the substance of the pre-seminal fluid nor its impurity; rather, it increases the impurity.