Translation:Shulchan Aruch/Orach Chaim/32
32: Directions for Writing the Tefillin.
1 The mitzvah of tefillin is to write four passages, namely, "Kadesh li kol bechor" (Sanctify unto Me every firstborn)[1] until "Lemo'adah" (On its set time)[2]; "Vehaya ki yevi'akha" (It shall be when He will bring you in)[3] until "Ki vechozek yad hotzi'anu H' mimitzrayim" (For with a mightiness of hand has Hashem taken us out of Egypt)[4]; and the passage of "Shema'" (Hear)[5] until "Uvish'arekha" (And on your gates)[6]; and the passage of "Vehaya im shamoa'" (And it shall be if [you will] indeed [listen])[7] until "'Al ha'aretz" (Upon the Land).[8] Gloss: And they must be written in this order, i.e., writing first the one previously written in the Torah, and if he changed the order, it is unkosher. And in the first place, one should write Shel yad (the hand set) before Shel rosh (the head one).
2 In the Shel rosh one should write each passage on a parchment by itself, whereas in the Shel yad he writes them all in the same parchment.
3 One should write them with black ink, whether it has gall tannin or not. Gloss: In the first place, one should be strict and write with ink made of soot of wood or oil soaked in gall-water [Mahari"l #119], as per Yoreh Deah #271.
If one wrote even a single letter in other types of color or in gold,