Reference for Niddah 135:13

אשה חופפת ביום וטובלת בלילה

IN THE MORNING AND FOUND HERSELF TO BE CLEAN, AND AT TWILIGHT<span class="x" onmousemove="('comment',' When the prescribed menstruation period terminates. ');">¹²</span>

Jastrow

Jastrow

Jastrow