תלמוד על עירובין 10:3

It is required that he write on leather on the place of the hair and on parchment on the place of its split³⁶³Where the script is more readable. Babli Menaḥot 32a.. If he changed this, he disqualified it. One should not write half of it on leather and half of it on parchment, but he may write on leather from a pure domestic animal and half on leather from a pure wild animal. One only writes on leather from a pure animal³⁶⁴Babli Šabbat 108a.. What is the reason? That the Eternal’s teaching be in your mouth³⁶⁵Ex. 13:9., from what you are putting into your mouth. But was it not stated, one writes on leather from carcasses and torn animals³⁶⁴Babli Šabbat 108a.? The kind which you are putting into your mouth³⁶⁶Since hide and leather are inedible anyhow.. One makes a staff at the end of a book, but for the Torah one on both sides. Therefore one rolls a book up to its beginning but the Torah to its middle³⁶⁷The Torah scroll can be stored to open at the place where one stopped reading.. Rebbi Samuel, Rebbi Ze`ira in the name of Rav Ḥiyya bar Joseph: Even two sheets<sup>368</sup>The scroll shows two sheets when it is opened.. Rebbi Ze`ira, Samuel bar Shilat in the name of Kahana: but only at the place of the suture³⁶⁹Babli 32a.. Rebbi Aḥa in the name of Rebbi Samuel bar Naḥman: A scroll which has no cover one turns on the writing so the writing should not be degraded³⁷⁰Eruvin 10 (Note 79); Soferim 3:16..