(Mishnah): A rock in a dry hollow pumpkin (used to weigh it down, in order to draw water from a well) - if we fill it up and it does not fall out, one may fill with it. If not, one may not fill with it;

If a vine branch is tied to a flask used to draw water, one may draw with it on Shabbos.

(Gemara): Our text of the Mishnah (21:1, permits carrying a basket) with a rock inside. Tana d'Vei Rebbi teaches that there is food and a rock inside (but if there is only a rock, it is a Bosis for Muktzah and one may not move it).

(R. Yakov bar Zavdi citing R. Avahu): R. Chiya bar Yosef and R. Yochanan argued about this. R. Chiya bar Yosef learns like our [text of the] Mishnah, and R. Yochanan holds like the Tana of Beis Rebbi.

Question: Our Mishnah is unlike R. Yochanan! If a rock in a dry hollow pumpkin... if we fill it up and it does not fall out, one may fill with it.

Answer: Since the rock is stuck in the wall [of the pumpkin], it is like [the pumpkin] itself.

Question: The Seifa is unlike R. Chiya bar Yosef! If not (it falls out), one may not fill with it. (R. Chiya bar Yosef's text there permits Stam, even if the rock is not stuck in the wall of the basket!)

Answer: Since [the rock] is made to weigh it down, it is as if he carries the pumpkin along with the rock (the rock is primary).

Question: [If so,] how does R. Yochanan explain [the Reisha? Also then we should forbid, for the rock is primary!]

Answer: It is as if he moves the pumpkin itself. (He holds that the pumpkin is primary.)

Question: That Mishnah is unlike R. Yochanan! One may take a child with a rock in his hand, or a basket with a rock inside, and Tana d'Vei Rebbi teaches that there is food and a rock inside. (Why may one take a child holding only a rock?)

Answer #1 (R. Kohen citing Rabanan there (in Bavel)): They considered a child like food. (It is like taking a basket with food and a rock inside.)

Answer #2: There (in Bavel) they say that they considered a rock in a child's hand like an expert amulet in a child's hand (for it calms him).