Leviticus 23:32

It shall be to you a sabbath of solemn rest, and you shall afflict your souls; on the ninth day of the month at evening, from evening to evening, you shall celebrate your sabbath."

Surrounding context

23:31 You shall do no manner of work; it shall be a statute forever throughout your generations in all your dwellings.

23:32 It shall be to you a sabbath of solemn rest, and you shall afflict your souls; on the ninth day of the month at evening, from evening to evening, you shall celebrate your sabbath."

23:33 Then the LORD spoke to Moses, saying,

Translation and sources