Mudrā-vidhāna (Lalitopākhyāna): Āvāhanī–Saṃkṣobhiṇī–Ākarṣiṇī and allied Mudrās
लोपामुद्रापतेङ्गुष्ठौ कारयेत्सकलावपि / इयं तु खेचरी नाम मुद्रा सर्वोत्तमोत्तमा / एतद्विज्ञानमात्रेण योगिनीनां प्रियो भवेत्
lopāmudrāpateṅguṣṭhau kārayetsakalāvapi / iyaṃ tu khecarī nāma mudrā sarvottamottamā / etadvijñānamātreṇa yoginīnāṃ priyo bhavet
Let both thumbs fully form the Lopā-mudrā. This mudrā is called Khecarī, the most supreme of the supreme. By the mere knowledge of this teaching, the yogin becomes dear to the yoginīs.