יִֽירָא֥וּךָ עִם־שָׁ֑מֶשׁ וְלִפְנֵ֥י יָ֝רֵ֗חַ דּ֣וֹר דּוֹרִֽים׃
只要太陽還在，月亮還存，人們必世世代代敬畏你。
Mishnah Berakhot
If a man was standing saying the tefillah and he remembers that he is one who has had a seminal emission, he should not stop but he should abbreviate [the blessings]. If he went down to immerse, if he is able to come up and cover himself and recite the Shema before the rising of the sun, he should go up and cover himself and recite, but if not he should cover himself with the water and recite. He should not cover himself either with foul water or with steeping water until he pours fresh water into it. How far should he remove himself from it and from excrement? Four cubits.