Bahir or Sefer HaBahir (Hebrew: סֵפֶר הַבָּהִיר, Hebrew pronunciation: [ˈsefeʁ ˌ(h)abaˈ(h)iʁ]; "Book of Clarity" or "Book of Illumination") is an anonymous mystical work, attributed to a 1st-century rabbinic sage Nehunya ben HaKanah (a contemporary of Yochanan ben Zakai) because it begins with the words, "R. Nehunya ben HaKanah said". It is also known as Midrash of Rabbi Nehunya ben HaKanah מִדְרָשׁ רַבִּי נְחוּנְיָא בֶּן הַקָּנָה‎. First mentioned in late 12th century Provencal works, the Bahir is an early work of esoteric Jewish mysticism that eventually became known as Kabbalah. Source: Wikipedia (en)