Komentaryo sa Levitico 15:3: Rashi, Ibn Ezra, Rashbam & Or HaChaim

רר [WHETHER HIS FLESH] DRIP — This word is connected with ריר "spittle" — the meaning is that his flesh runs with its issue as spittle, i. e. that it (the flow) comes forth clear in appearance (not thick and troubled).

This is the manner of his ritual impurity to indicate the two different ways that the flow can occur

רר בשרו את זובו, the word is similar to the expression ויורד רירו על זקנו “his spittle ran down his beard” in Samuel I 21,14 when David pretended to be mentally disturbed in order to save his life. The flesh of the person afflicted drips with this discharge.

או החתים OR [HIS FLESH] BE STOPPED — it means, that the flow issues thick and closes up the orifice of the membrum, so that his flesh is stopped up by the drop that issued from him. This is its literal meaning. The Halachic explanation is: The first verse (v. 2) enumerates two appearances of the issue and then terms him (the man affected by them) unclean, for it is said, "when there flows from his flesh a flowing he is unclean" and the other verse (v. 3) enumerates three appearances of the issue and only then terms him unclean, as it is said, "his uncleanness through his flow: if his flesh drips through its flow as with spittle, or if his flesh is stopped up through his flowing then only is it his uncleanness!" How can this be reconciled? Two appearances of the flow serve to make him unclean, and the third obligates him also to bring an offering (Niddah 43b; Megillah 8a).