Vanadurgā Upaniṣad 3.7.p21

3.7.p21

kāladaṇḍo karālāsyā raktalocanabhīṣaṇām |
kāladaṇḍaparaṃ mṛtyuṃ vijayāṃ bandhayāmyaham ||

Fierce-faced with the staff of Death, terrifying with blood-red eyes, / surpassing the staff of Death, Death itself: I bind [her], the victorious one.