Reference for Bekhorot 63:50

ואימא הוא ולא מעשר

Did not a Tanna of the school of R'Ishmael teach: [Scripture says]: And the Priest shall come again and [later it says]: Then the Priest shall come,<span class="x" onmousemove="('comment',' Lev. XIV. 39 and 44 (with reference to leprosy of house) .');">³¹</span>

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