民數記 15:38 哈拉卡：Mishneh Torah, Fringes, Mishneh Torah, Reading the Shema & Shulchan Arukh, Orach Chayim

The fringe that is attached to the corner of the garment, and made of the same species of material as the garment, is called Tzitzith Fringes, because it is like the fringes of hair of the head, as it is said, "And he took me up by the lock (Tzitzith) of my head" (Ezekiel 8:3). This fringe is called "the White (part)", because we are not commanded to dye it. No definite number of threads is prescribed in the Torah for the fringes.

What does one read? Three sections as follows: the section beginning, "Hear, O Israel" (Deuteronomy 6:4-9); that commencing, "And it shall come to pass" (Deuteronomy 11:13-21); and that commencing, "And the Lord spoke" (Numbers 15:37-41). The section beginning, "Hear, O Israel" is recited first, because it sets forth the duties of acknowledging the Unity of God, loving Him, and studying His words. This is the great and essential matter on which all depends. Then, the passage beginning, "And it shall come to pass" is read, this containing a charge to fulfill all the other commandments. Finally the section concerning Fringes is read, as it also contains a charge to remember all the commandments.

This precept thus consists of two ordinances;—to attach to the corner of the garment a fringe projecting from it, and to wind a blue thread round the fringe, as it is said, "Speak unto the children of Israel, and bid them that they make them a fringe upon the corners of their garments … and that they put upon the fringe of each corner a thread of blue" (Numbers 16:38).