Shiva Purana
एतस्मिन्नन्तरे तत्र कामरूपेश्वरेण च ॥ अत्यंतं ध्यानमारब्धं पार्थिवस्य पुरस्तदा ॥ २ ॥
In the meantime a great meditation was started by the lord of Kāmarūpa in front of the earthen idol of Śiva.
english translation
etasminnantare tatra kAmarUpezvareNa ca ॥ atyaMtaM dhyAnamArabdhaM pArthivasya purastadA ॥ 2 ॥
hk transliteration by Sanscript