Related for Rosh Hashanah 4:2
וְעוֹד זֹאת הָיְתָה יְרוּשָׁלַיִם יְתֵרָה עַל יַבְנֶה, שֶׁכָּל עִיר שֶׁהִיא רוֹאָה וְשׁוֹמַעַת וּקְרוֹבָה וִיכוֹלָה לָבֹא, תּוֹקְעִין. וּבְיַבְנֶה לֹא הָיוּ תוֹקְעִין אֶלָּא בְּבֵית דִּין בִּלְבָד:
And this, too, obtained in Jerusalem, which did not obtain in Yavneh [Our Mishnah is defective. This is what was taught: In Jerusalem they blew the shofar in the entire city (on Shabbath) so long as beth-din sat in the Temple, beth-din presiding until the sixth hour of the day. And in Yavneh, they did not blow in the entire city, but only before the beth-din. "And this, too, obtained in Jerusalem, which did not obtain in Yavneh"], that every city which "saw" [Jerusalem (blew on Shabbath) — to exclude a city situated in a valley, which, though it may have been "near," they did not blow the shofar in], and which heard (the shofar), [to exclude a city situated on a mountain top], and which was near, [to exclude a city situated outside the tchum], and which could come, [to exclude a city separated (from Jerusalem) by a river]. And in Yavneh they blew only before beth-din alone.