Mishneh Torah — Positive Mitzvot מצוות עשה, Chapter 63
The full Hebrew text of Mishneh Torah, Positive Mitzvot, Chapter 63, with English translation by Maimonides (Rambam).
מעשה העולה, שנאמר: "אִם עוֹלָה קָרְבָּנוֹ" (ויקרא א, ג).
The burnt offering, as [Leviticus 1:3] states:"If his is a burnt offering...."