Rabbi Berachiah, son of Abba, son of Kahana [in the name of Rabbi Elazar, Midrash Nasa, chapter 9. And this matter is found in the Jerusalem Talmud, chapter 3 of Sotah, halacha 4. Rabbi Berachiah, Rabbi Abba, son of Kahana. And it is also indicated in Midrash Eichah, verse of her impurity, Rabbi Berachiah in the name of Abba, son of Kahana].
Seder_HaDorot,_Tanaim_and_Amoraim.815:1