Shiva Purana
तमाकर्ण्य रवं सोऽथ राजा त्यक्तशिवार्चनः॥ रिप्वागमनशंकातो निर्ययौ भवनाद्बहिः ॥ ५१॥
On hearing that noise, the king left the worship of Śiva unfinished and went out of his palace suspecting the arrival of enemies.
english translation
tamAkarNya ravaM so'tha rAjA tyaktazivArcanaH॥ ripvAgamanazaMkAto niryayau bhavanAdbahiH ॥ 51॥
hk transliteration by Sanscript