The four Kumāras, headed by Sanat-kumāra, who all knew the transcendental pastimes of the Lord, glorified the Lord in rhythmic accents with selected words full of affection and love. At that time Lord Saṅkarṣaṇa, with His thousands of raised hoods, began to radiate an effulgence from the glowing stones on His head.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
मुहुर्गृणन्तो वचसानुराग- स्खलत्पदेनास्य कृतानि तज्ज्ञाः । किरीटसाहस्रमणिप्रवेक- प्रद्योतितोद्दामफणासहस्रम्
muhurgṛṇanto vacasānurāga- skhalatpadenāsya kṛtāni tajjñāḥ | kirīṭasāhasramaṇipraveka- pradyotitoddāmaphaṇāsahasram
SB 3.8.6