Exhibiting his terrible teeth, fierce glance and frowning eyebrows, terrible to see, he took up his weapon, a trident, and thus began speaking to his associates, the assembled demons.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
करालदंष्ट्रोग्रदृष्ट्या दुष्प्रेक्ष्यभ्रुकुटीमुखः । शूलमुद्यम्य सदसि दानवानिदमब्रवीत्
karāladaṃṣṭrogradṛṣṭyā duṣprekṣyabhrukuṭīmukhaḥ | śūlamudyamya sadasi dānavānidamabravīt
SB 7.2.3