Eruvin10: 2
רַבִּי שִׁמְעוֹן אוֹמֵר: נוֹתְנָן לַחֲבֵרוֹ, וַחֲבֵרוֹ לַחֲבֵרוֹ, עַד שֶׁמַּגִּיעַ לֶחָצֵר הַחִיצוֹנָה. וְכֵן בְּנוֹ; נוֹתְנוֹ לַחֲבֵרוֹ, וַחֲבֵרוֹ לַחֲבֵרוֹ, אֲפִלּוּ מֵאָה. רַבִּי יְהוּדָה אוֹמֵר: נוֹתֵן אָדָם חָבִית לַחֲבֵרוֹ, וַחֲבֵרוֹ לַחֲבֵרוֹ, אֲפִלּוּ חוּץ לַתְּחוּם. אָמְרוּ לוֹ: לֹא תְהַלֵּךְ זוֹ יוֹתֵר מֵרַגְלֵי בְעָלֶיהָ.
R’ Shimon says: He hands them to his friend, and his friend to his friend, until he reaches the outermost courtyard. So, too, his child; he hands him to his friend, and his friend to his friend, even if they are a hundred. R’ Yehudah says: A person may hand a barrel to his friend, and his friend to his friend, even beyond the techum. They said to him: This should not go further than the feet of its owners.