Al da'at hamakom, v'al daat hakahal
B'yeshiva shel ma'ala
v'yeshiva shel ma'ata
Onu matirim l'hitpalel im ha'avayanim
HT: Enigma
[Loose Translation:
It's the pre-Kol Nidray announcement that sinners who might otherwise be banned from communal prayer, are welcome on Yom Kippur. It is based on the Talmudic statement that says that a public fast in which transgressors do not participate is not a proper fast.]