Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 69
Sanskrit:
एवं दग्ध्वा पुरस्तिस्रो भगवान्पुरहा नृप ।ब्रह्मादिभि: स्तूयमान: स्वं धाम प्रत्यपद्यत ॥ ६९ ॥
ITRANS:
evaṁ dagdhvā puras tisrobhagavān pura-hā nṛpabrahmādibhiḥ stūyamānaḥsvaṁ dhāma pratyapadyata
Translation:
O King Yudhiṣṭhira, thus Lord Śiva is known as Tripurāri, the annihilator of the three dwellings of the demons, because he burnt these dwellings to ashes. Being worshiped by the demigods, headed by Lord Brahmā, Lord Śiva returned to his own abode.