Reference for Makkot 28:7

ריש לקיש אומר (ויקרא יב, ד) בכל קדש לא תגע

Reish Laksash says [it is derived from] (Leviticus 12,4) "In all holiness he he shall not touch" [b'chol kodesh lo sigah]. Rebbi Yochanon says that Bardala taught,

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