Reference for Chullin 67:22

אמר לו

will [by contact] render liquids unclean in the first degree, with the exception of a tebul yom.<span class="x" onmousemove="('comment',' I.e., one who immersed himself in a mikweh in the daytime but technically does not become clean until after sunset. He is regarded in the condition of unclean in the second degree and therefore renders terumah invalid, but unlike others which are unclean in the second degree, he does not by his contact render liquids unclean in the first degree. V. Par. VIII, 7.');">¹¹</span>

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