Reference for Chullin 269:12

חמש רחלות גוזזות כל שהן

THE WEIGHT OF FIVE SELA'S IN JUDAH, WHICH IS EQUAL TO TEN SELA'S IN GALILEE, OF BLEACHED WOOL BUT NOT DIRTY WOOL, SUFFICIENT TO MAKE FROM IT A SMALL GARMENT, FOR IT IS WRITTEN, THOU SHALT GIVE HIM,<span class="x" onmousemove="('comment',' Deut. XVIII, 4.');"><sup>7</sup></span>