Reference for Niddah 108:8

ביולדת זכר איכא לספוקי ביולדת נקבה ליכא לספוקי

which may not be eaten<span class="x" onmousemove="('comment',' Since it is possible that the birth was not valid, that in consequence no sacrifice was required, and that the bird that was mistakenly killed in the manner prescribed for a sacrifice was, therefore, nebelah, ');">⁸</span>

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