שבועות

שְׁבוּעוֹת שְׁתַּיִם שֶׁהֵן אַרְבַּע, יְדִיעוֹת הַטֻּמְאָה שְׁתַּיִם שֶׁהֵן אַרְבַּע, יְצִיאוֹת הַשַּׁבָּת שְׁתַּיִם שֶׁהֵן אַרְבַּע, מַרְאוֹת נְגָעִים שְׁנַיִם שֶׁהֵם אַרְבָּעָה:

Oaths are of two kinds, subdivided into four; The laws concerning the discovery of having contracted uncleanness are of two kinds, subdivided into four; The laws concerning carrying on the Sabbath are of two kinds, subdivided into four. The symptoms of negas are of two kinds, subdivided into four.

כֹּל שֶׁיֵּשׁ בָּהּ יְדִיעָה בַתְּחִלָּה וִידִיעָה בַסּוֹף וְהֶעְלֵם בֵּינְתַּיִם, הֲרֵי זֶה בְּעוֹלֶה וְיוֹרֵד. יֶשׁ בָּהּ יְדִיעָה בַתְּחִלָּה וְאֵין בָּהּ יְדִיעָה בַסּוֹף, שָׂעִיר שֶׁנַּעֲשֶׂה בִפְנִים וְיוֹם הַכִּפּוּרִים תּוֹלֶה, עַד שֶׁיִּוָּדַע לוֹ וְיָבִיא בְעוֹלֶה וְיוֹרֵד:

Where there is knowledge at the beginning and at the end but forgetfulness between, a “sliding scales” sacrifice is brought. Where there is knowledge at the beginning but not at the end, the goat which is [sacrificed and its blood sprinkled] within [the Holy of Holies on the Day of Atonement] together with the Day of Atonement itself hold the sin in suspense until it become known to the sinner, and he brings the “sliding scale” sacrifice.