The Upanishads, Part 1 (SBE01)
Chapters
Khandogya-Upanishad: Fourth Prapathaka: First Khanda

^57:1 It is curious that in a hymn of the Atharva-veda (V, 22, 5, 8) takman, apparently a disease of the skin, is relegated to the Mahavrishas, where Raikva dwelt. Roth, Zur Literatur des Veda, p. 36.