Reference for Rosh Hashanah 20:4

אלא לעולם ר"מ וכי קאמר ל' לקליטה

R'Judah said: If a grafting does not take within three days, it will not take all. R'Jose and R'Simeon said that it takes two weeks',<span class="x" onmousemove="('comment',' Sheb. II, 6.');">³</span>

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