Mishneh Torah — Positive Mitzvot מצוות עשה, Chapter 67
The full Hebrew text of Mishneh Torah, Positive Mitzvot, Chapter 67, with English translation by Maimonides (Rambam).
מעשה המנחה, שנאמר: "וְנֶפֶשׁ כִּי תַקְרִיב קָרְבַּן מִנְחָה" (ויקרא ב, א).
The meal offering, as [Leviticus 2:1] states: "When a person presents a meal offering...."