Reference for Pesachim 120:2

מידי איריא הא כדאיתא והא כדאיתא סיפא בעבודה אחת ורישא או בעבודה אחת או בשתי עבודות

while the first clause refers either to one service or to two services.<span class="x" onmousemove="('comment',' V. p. 301. n. 6.');">³</span> The scholars asked: What is the law of a Passover sacrifice which he killed at any other time of the year for its own purpose and for another purpose?<span class="x" onmousemove="('comment',' E.g., if a man dedicated a lamb for the Passover sacrifice a considerable time beforehand. Now it is stated infra ');">⁴</span>

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