Leviticus 15:1

וְלַשְׂאֵת וְלַסַּפַּחַת וְלַבֶּהָֽרֶת

and for a rising, and for a scab, and for a bright spot;

לְהוֹרֹת בְּיוֹם הַטָּמֵא וּבְיוֹם הַטָּהֹר זֹאת תּוֹרַת הַצָּרָֽעַת

to teach when it is unclean, and when it is clean; this is the law of leprosy.

דַּבְּרוּ אֶל־בְּנֵי יִשְׂרָאֵל וַאֲמַרְתֶּם אֲלֵהֶם אִישׁ אִישׁ כִּי יִהְיֶה זָב מִבְּשָׂרוֹ זוֹבוֹ טָמֵא הֽוּא

Speak unto the children of Israel, and say unto them: When any man hath an issue out of his flesh, his issue is unclean.

וְזֹאת תִּהְיֶה טֻמְאָתוֹ בְּזוֹבוֹ רָר בְּשָׂרוֹ אֶת־זוֹבוֹ אֽוֹ־הֶחְתִּים בְּשָׂרוֹ מִזּוֹבוֹ טֻמְאָתוֹ הִֽוא

And this shall be his uncleanness in his issue: whether his flesh run with his issue, or his flesh be stopped from his issue, it is his uncleanness.