Eruvin4: 2
פַּעַם אַחַת, לֹא נִכְנְסוּ לַנָּמָל עַד שֶׁחֲשֵׁכָה. אָמְרוּ לוֹ לְרַבָּן גַּמְלִיאֵל: ,,מָה אָנוּ לֵירֵד?“ אָמַר לָהֶן: ,,מֻתָּרִים אַתֶּם; שֶׁכְּבָר הָיִיתִי מִסְתַּכֵּל, וְהָיִינוּ בְתוֹךְ הַתְּחוּם עַד שֶׁלֹּא חֲשֵׁכָה.“
Once, they did not enter the harbor until night had fallen. They asked Rabban Gamliel: ‘‘May we disembark?’’ He answered them: ‘‘You are permitted, for I had been observing and we were within the techum before dark.’’