Positive commandment · Mitzvat Aseh #62 of 613
To salt all the sacrifices
למלוח כל קרבן
The verse · Vayikra 2:13
וְכׇל־קׇרְבַּן מִנְחָתְךָ בַּמֶּלַח תִּמְלָח וְלֹא תַשְׁבִּית מֶלַח בְּרִית אֱלֹהֶיךָ מֵעַל מִנְחָתֶךָ עַל כׇּל־קׇרְבָּנְךָ תַּקְרִיב מֶלַח
“And thy every meal offering shalt thou season with salt; nor shalt thou suffer the salt of the covenant of thy God to be lacking from thy meal offering: with all thy offerings thou shalt offer salt.”
The Rambam’s words
To salt all the sacrifices, as [Leviticus 2:13] states: "Offer salt on all your sacrifices."
למלוח כל קרבן, שנאמר: "עַל כָּל קָרְבָּנְךָ תַּקְרִיב מֶלַח" (ויקרא ב, יג).
Who & when
“And [it] is practiced at the time of the [Temple] by the males of the priesthood.”
Where in the Mishneh Torah
Hilchot Things Forbidden on the Altar הלכות איסורי המזבח