During the reign of Cākṣuṣa Manu, the King of heaven was known as Mantradruma. Among the demigods were the Āpyas, and among the great sages were Haviṣmān and Vīraka.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
इन्द्रो मन्त्रद्रुमस्तत्र देवा आप्यादयो गणाः । मुनयस्तत्र वै राजन् हविष्मद्वीरकादयः
indro mantradrumastatra devā āpyādayo gaṇāḥ | munayastatra vai rājan haviṣmadvīrakādayaḥ
SB 8.5.8