Vaivasvata-vamsha-pravṛttiḥ
Origin and Issue of Vaivasvata Manu; Ilā–Sudyumna Episode
सूत उवाच पुरा महेश्वरं द्रष्टुं कुमारास्सनकादयः / इलावृतं समाजग्मुर्ददृशुर्वृषभध्वजम्
sūta uvāca purā maheśvaraṃ draṣṭuṃ kumārāssanakādayaḥ / ilāvṛtaṃ samājagmurdadṛśurvṛṣabhadhvajam
Sūta said: Long ago the Kumāras—Sanaka and the others—went to Ilāvṛta to behold Maheśvara, and they saw Śiva, whose banner bears the bull.