Reference for Niddah 56:25

זכר ונקבה למה לי לכדרב

And should you retort that if the All Merciful had only written 'man' it might have been presumed that a metal vessel need not be sent out<span class="x" onmousemove="('comment',' And that it is for this reason that Scripture specified 'both male and female' in order to indicate (by the specific mention of the two sexes) that the deduction must have a reference to a law that applied to both sexes viz., the attainment of cleanness in a ritual bath, so that metal vessels also should be included. ');">⁴⁰</span> [it may be pointed out that this<span class="x" onmousemove="('comment',' The law that an unclean metal vessel must also be sent out of the Temple court. ');">⁴¹</span>

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