Mishneh Torah — Positive Mitzvot מצוות עשה, Chapter 9
The full Hebrew text of Mishneh Torah, Positive Mitzvot, Chapter 9, with English translation by Maimonides (Rambam).
לְקַדַּשׁ שְׁמוֹ, שֶׁנֶּאֱמָר: "וְנִקְדַּשְׁתִּי, בְּתוֹךְ בְּנֵי יִשְׂרָאֵל" (ויקרא כב, לב).
To sanctify His name, as [Leviticus 22:32] states: "And I shall be sanctified amidst the children of Israel."