Reference for Niddah 98:8

מאי איכא בין ת"ק לר' יהודה

and R. Judah? — 'Ulla replied: The practical difference between them is a case of absorption under pressure.<span class="x" onmousemove="('comment',' According to the first Tanna this also is proof that the vessel lets liquids in, while according to R. Judah this is no proof (cf. supra n. 2). ');">⁸</span>

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