Reference for Rosh Hashanah 46:7

בראשונה לא היו זזין משם כל היום התקין רבן גמליאל הזקן שיהו מהלכין אלפים אמה לכל רוח

TO COME. ORIGINALLY THEY USED NOT TO LEAVE THE PLACE THE WHOLE DAY,<span class="x" onmousemove="('comment',' If they came on Sabbath, as they had already exceeded the limit of two thousand cubits.');">¹⁵</span> BUT RABBAN GAMALIEL THE ELDER INTRODUCED A RULE THAT THEY COULD GO TWO THOUSAND CUBITS FROM IT IN ANY DIRECTION.

Jastrow

Jastrow

Jastrow

Jastrow