Mudgalapurana 8.8.14

8.8.14

tatastena te sattayā sṛṣṭamādyaṃ sadaikasvarūpaṃ paraṃ sohamevam |
tathā tvaṃ ca tatraiva saṃsthaḥ parātman namo dhūmravarṇāya sarveśvarāya ||

Then by that, through your existence, was created the primal supreme 'I am He', ever of one single nature; / and likewise you yourself reside right there, O Supreme Self, homage to Dhūmravarṇa, the Lord of all!