Exodus 29:18, 25, 41

and you shall burn the whole ram on the altar. It is a burnt offering to the LORD: it is a sweet and soothing aroma, an offering by fire to the LORD.

Then you shall take them from their hands, add them to the burnt offering, and burn them on the altar for a sweet and soothing aroma before the LORD; it is an offering by fire to the LORD.

And the other lamb you shall offer at twilight, and do with it as with the grain offering of the morning and with the drink offering, for a sweet and soothing aroma [to appease God], an offering by fire to the LORD.