רב אבין

Rab Avin, the brother [(or perhaps it should be "the son of his brother")] of Rabbi Avin the Levite, said: There are four who are proud in the world, as stated in the Midrash. [However, I have seen in Shemot Rabbah, chapter 23, that Rabbi Avin said there are four who are proud, and in the Midrash Hazit, regarding the verse "His pillars are of silver," Rabbi Bon in the name of his father said there are four who are proud.

Thus, in Yichusin, there is a textual error.]