Shiva Purana
कालचक्रं पंचचक्रमेकैकेन क्रमोत्तरे । सृष्टिमोहौ ब्रह्मचक्रं भोगमोहौ तु वैष्णवम् १०६ ।
The Kālacakra consists of five wheels, one being over the other. Sight and delusion (Drṣṭi and Moha) constitute the Brahmacakra; Enjoyment and delusion (Bhoga and Moha) constitute the Viṣṇu Chakra.
english translation
kAlacakraM paMcacakramekaikena kramottare । sRSTimohau brahmacakraM bhogamohau tu vaiSNavam 106 ।
hk transliteration by Sanscript