Leviticus 3:1

שלמים PEACE-OFFERINGS — They are so called because they bring peace (שלום) into the world. Another explanation is: they are called שלמים because through them there is “peace” (harmony and lack of envy) to the altar, to the priests and to the owners (since all these receive a portion) (cf. Rashi on Exodus 29:22 and our Note thereon; see also Sifra, Vayikra Dibbura d'Nedavah, Chapter 16 2).

וְאִם־זֶ֥בַח שְׁלָמִ֖ים קׇרְבָּנ֑וֹ אִ֤ם מִן־הַבָּקָר֙ ה֣וּא מַקְרִ֔יב אִם־זָכָר֙ אִם־נְקֵבָ֔ה תָּמִ֥ים יַקְרִיבֶ֖נּוּ לִפְנֵ֥י יְהֹוָֽה׃

And if his offering be a sacrifice of peace offering, if he offer it of the herd; whether it be a male or female, he shall offer it without blemish before the Lord.