Matsya Purana 285.17

285.17

hṛdi tatvaṃ guṇātītaṃ viśva cakraṃ namāmyaham.
vāsudeve sthitaṃ cakraṃ cakramadhye tu mādhavaḥ .. 285.16

‘ O, one full of the highest bliss do save me from the mundane sea of troubles The illustrious Tattva which is seen constantly in the hearts by the Yogis in meditation is saluted by me I bow down to the Viśva chakra above all the attributes O Chakra ! you are contained in Lord Viṣṇu and vice versa It is therefore the remover of all sins—15 17