Positive commandment · Mitzvat Aseh #14 of 613
To make tzitzit
לַעֲשׂוֹת צִיצִית
The verse · Bamidbar 15:38
דַּבֵּר אֶל־בְּנֵי יִשְׂרָאֵל וְאָמַרְתָּ אֲלֵהֶם וְעָשׂוּ לָהֶם צִיצִת עַל־כַּנְפֵי בִגְדֵיהֶם לְדֹרֹתָם וְנָתְנוּ עַל־צִיצִת הַכָּנָף פְּתִיל תְּכֵלֶת
“Speak to the children of Yisra᾽el, and bid them that they make them fringes in the corners of their garments throughout their generations, and that they put upon the fringe of each corner a thread of blue:”
The Rambam’s words
To make tzitzit, as [Numbers 15:38] states: "And you shall make tzitzit for them."
לַעֲשׂוֹת צִיצִית, שֶׁנֶּאֱמָר: "וְעָשׂוּ לָהֶם צִיצִת" (במדבר טו, לח).
Why · Sefer HaChinuch #386
Tzitzit
“The root of the commandment is revealed in the verse: It is in order that we always remember all of the commandments of G-d. And there is no better reminder in the world than carrying the seal of the Master on the clothes that one wears at all times, as a person is [always attentive] to his clothes.”
Who & when
“This commandment is practiced by men in every place and at all times, but not by women.”
Where in the Mishneh Torah
Hilchot Fringes הלכות ציצית