Yogacūḍāmaṇi Upaniṣad 5

Yogacūḍāmaṇyupaniṣad 5

nābhau daśadalaṃ padmaṃ hṛdaye dvādaśārakam |
ṣoḍaśāraṃ viśuddhākhyaṃ bhrūmadhye dvidalaṃ tathā ||