Reference for Yoma 50:2

שאני מחתה וקטרת דחדא עבודה היא

Some argue thus: This is the case only with coal-pan and incense, because they form one service, but all other tasks require individual count!<span class="x" onmousemove="('comment',' Which proves that every task requires a count.');">²</span> - [No.] With regard to the coal-pan it is necessary to inform us [that no separate count is required] for the thought could have arisen that because it takes place rarely and enriches,<span class="x" onmousemove="('comment',' V. infra 26a.');">³</span>

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