Tosefta untuk Bilangan 10:35

These render the hands unfit: Food of first degree impurity, and madaf (i.e., objects rendered impure through indirect contact with an impure person), and liquids. Rabbi Shimon ben Yehuda says in the name of Rabbi Shimon, one who touches the straps [of the tefillin] is pure until he touches the box [of the tefillin]. A worn out [Torah] scroll -- if there was enough [parchment] in it to compile eighty-five letters, like the section "And when the Ark traveled" (Num. 10:35), it defiles the hands. A scroll on which eighty-five letters are written, it is [considered to be] like the section, "And when the Ark traveled," [and] it defiles the hands. [If] sheets [containing] other [writings] were connected to it, it defiles the hands and the remainder do not defile the hands. Rabbi Yehuda says, the blank margin (הגליון) that is at the beginning of a scroll, and the [empty parchment] that is sufficient to encircle it^*i.e., when the scroll is rolled up, see B.B. 13b:12 (כְּדֵי לָגוֹל הֶיקֵּף) -- all of these defile the hands. One who writes Hallel and the Shema^*הכתוב הלל ושמע not ב"ה ושמע (see GR"A) for a child in order to teach with it -- even though he has no right to do it^*i.e., since one is not permitted to write small sections of Scripture (see Zar Zahav here) -- [the writing] defiles the hands.