बलाहकादिसप्तसेनानायकप्रेषणम् (Dispatch of the Seven Commanders beginning with Balāhaka) / Lalitopākhyāna War Continuation
करालाक्षश्च भूभर्ता षष्ठो ऽत्यन्तगरिष्ठदः / वज्रनिष्ठुरघोषश्च प्राचलत्प्रेतवाहनः
karālākṣaśca bhūbhartā ṣaṣṭho 'tyantagariṣṭhadaḥ / vajraniṣṭhuraghoṣaśca prācalatpretavāhanaḥ
Then Karālākṣa, lord of the earth—the sixth, who lays on an exceeding heaviness—uttering a harsh roar like the vajra, advanced, borne upon a preta as his mount.