Reference for Pesachim 55:3

אמר רב יוסף היינו דאמרי אינשי כפא דחטא נגרא בגווה נשרוף חרדלא

and the sin-offering of a bird which is brought for a doubt,<span class="x" onmousemove="('comment',' E.g., when a woman miscarries, and it is not known whether the fetus was viable or not.');">⁴</span> on your view,<span class="x" onmousemove="('comment',' V. Tem. 34a. The Rabbis hold that this bird sin-offering must be burnt, while R. Judah maintains that it is cast into a waterduct which carries it off.');">⁵</span>

Jastrow

Jastrow