Le Lévitique 27:1 Halakha : Mishneh Torah, Rest & Mishneh Torah, Sabbath

And court messengers may go out to render forbidden mixtures (kilayim) ownerless. And we may redeem captives, appraisals, expropriations and consecrated items. And we may give water to sotah women. And we may burn a [red] heifer. And we may behead the calf (required when we find someone killed in the field). And we may pierce [the ear of] an Israelite slave. And we may purify a metsora. And we may mark graves—the mark of which had gotten rubbed off by the rain—in order that priests (kohanim) separate themselves from them. As all of these are needs of the community.

We may not judge, nor perform chalitsah, nor perform levirate marriage nor betroth a woman, [as a] decree lest one write. And we do not consecrate, nor appraise nor dedicate, since it is like buying and selling. And we do not separate priestly tithes and tithes, as it is similar to one consecrating the fruits that he separated; and also because it is like he fixes them on Shabbat. And we do not tithe animals, [as a] decree lest he mark [it] with red dye. But one may consecrate his Pesach sacrifice or his holiday (chagigah) sacrifice on a holiday, as this is the commandment of the day. And in the same way that we do not consecrate, so too do we not sanctify purifying waters (from the red heifer).