Deuteronomy 23:11
When evening approaches, he must wash with water, and when the sun sets he may return to the camp.
Berean Standard Bible
But it shall be, when evening cometh on, he shall wash himself with water: and when the sun is down, he shall come into the camp again.
but it shall be, when evening comes, he shall bathe himself in water. When the sun is down, he shall come within the camp.