וְהִזָּ֨ה עָלָ֧יו מִן־הַדָּ֛ם בְּאֶצְבָּע֖וֹ שֶׁ֣בַע פְּעָמִ֑ים וְטִהֲר֣וֹ וְקִדְּשׁ֔וֹ מִטֻּמְאֹ֖ת בְּנֵ֥י יִשְׂרָאֵֽל׃
И он семь раз окропит кровью на нем свой палец, очистит его и освяти его от нечистоты сынов Израилевых.
Mishnah Yoma
Then he sprinkled the top of the altar seven times. And he would pour out the remainder of the blood at the western base of the outer altar. And [the remainder of the blood sprinkled] on the outer altar he poured out at the southern base. Both mingled in the aqueduct and flowed into Nahal Kidron, and they were sold to gardeners as manure and by using them one transgresses the law of trespass (meilah).