Leviticus 2:11-13

11No meal offering, which ye shall offer unto the LORD, shall be made with leaven: for ye shall burn no leaven, nor any honey, as an offering made by fire unto the LORD.

12As an oblation of firstfruits ye shall offer them unto the LORD: but they shall not come up for a sweet savour on the altar.

13And every oblation of thy meal offering shalt thou season with salt; neither shalt thou suffer the salt of the covenant of thy God to be lacking from thy meal offering: with all thine oblations thou shalt offer salt.