John Gill Commentary Leviticus 15:11

"And whomsoever he that hath the issue toucheth, without having rinsed his hands in water, he shall wash his clothes, and bathe himself in water, and be unclean until the even." — Leviticus 15:11 (ASV)

And whoever he touches that has the issue Not only he that touched him that had the issue, but whoever, and indeed whatever he touched, as the Targum of Jonathan, the Septuagint, and Arabic versions, were unclean; (See Gill on Leviticus 15:4);

and has not rinsed his hands in water ; which is to be understood, not of the man that is touched, but of him that touches; and is interpreted by the Jewish writers, generally, of bathing the whole body; according to Aben Ezra, the simple sense is, every clean person, whom he that has an issue touches and has rinsed his hands, he is indeed unclean, but not his garments; and if his hands are not rinsed his garments are unclean, and this is as he that touches all that is under him; wherefore it follows:

he shall wash his clothes that is, if a man is touched, as the Targum of Jonathan, and not a thing, as directed and prescribed in the above cases instanced in; all which are designed to instruct men to abstain from conservation with impure persons in doctrine and practice.