Reference for Niddah 29:18

בעלה נכנס להיכל ומקטיר קטורת

one can well see why the Rabbis declare the man clean, but according to R. Ashi<span class="x" onmousemove="('comment',' Who maintained supra that 'the former and the latter represent the same length of time'. ');">¹⁸</span>

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