Negative commandment · Lo Ta’aseh #124 of 613
Not to allow any of the remaining portions of the meal offerings to leaven
שלא לעשות שיירי מנחות חמץ
The verse · Vayikra 6:10
לֹא תֵאָפֶה חָמֵץ חֶלְקָם נָתַתִּי אֹתָהּ מֵאִשָּׁי קֹדֶשׁ קׇדָשִׁים הִוא כַּחַטָּאת וְכָאָשָׁם
“It shall not be baked with leaven. I have given it to them for their portion of my offerings made by fire; it is most holy, as is the sin offering, and the guilt offering.”
The Rambam’s words
Not to allow any of the remaining portions of the meal offerings to leaven, as [Leviticus 6:10] states: "It shall not be baked as leaven. Their portion...."
שלא לעשות שיירי מנחות חמץ, שנאמר "לא תיאפה חמץ, חלקם" (ויקרא ו,י).
Who & when
“And this commandment is practiced at the time of the [Temple] by males and females.”
Where in the Mishneh Torah
Hilchot Sacrificial Procedure הלכות מעשה הקרבנות