Zevachim6: 3
כָּל הָעוֹלִים לַמִּזְבֵּחַ עוֹלִין דֶּרֶךְ יָמִין, וּמַקִּיפִין וְיוֹרְדִין דֶּרֶךְ שְׂמֹאל; חוּץ מִן הָעוֹלֶה לִשְׁלשָׁה דְבָרִים אֵלּוּ, שֶׁהָיוּ עוֹלִים, וְחוֹזְרִים לֶעָקֵב.
All who ascend the Altar ascend toward the right, go around [the Altar], and descend toward the left; except for one who ascends for these three things, who would ascend, and retrace their steps.