Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/22/31

कैलासस्य पतिर्यो वै ह्यंतस्सत्त्वो बहिस्तमाः ।। कालाग्निर्नामतः ख्यातो निर्गुणो गुणवान्भवः ।। प्रणिपातैरनेकैश्च वचनं चेदमब्रवीत् ।। ३१ ।।

sanskrit

The lord of Kailāsa, who is Sāttvaic within and Tāmasaic without, who is famous in the name of Kālāgni and who is the supreme Being with and without attributes spoke after making many obeisances.

english translation

kailAsasya patiryo vai hyaMtassattvo bahistamAH || kAlAgnirnAmataH khyAto nirguNo guNavAnbhavaH || praNipAtairanekaizca vacanaM cedamabravIt || 31 ||

hk transliteration by Sanscript