On Simchas Torah, people sing ישראל ואורייתא וקודשא בריך הוא חד הוא.
However, the Zohar (Shemos 73b) says differently:
...,קוּדְשָׁא בְּרִיךְ הוּא, אוֹרַיְיתָא, וְיִשְׂרָאֵל. וְכָל חַד
If that's the case, why do people sing this Zohar backward?
I have heard that although the words for this song are attributed to the Zohar, the idea is from the Zohar, however the way the words are sung is based on the writings of Rabbi Chaim Volozhin in Nefesh HaChaim.
I will add in the exact location in Nefesh HaChaim as soon as I find it.