Devarim 25:7

Devarim 25:7 OJB

And if the ish like not to take his brother's isha, then let his brother's isha go up to the sha'ar unto the zekenim, and say, My husband's brother refuseth to raise up unto his brother a shem in Yisroel, he will not perform the levirate marriage with me.
OJB: Orthodox Jewish Bible