Shiva Purana

siva.sh/siva-purana/saturda-samhita/8/3

सनत्कुमार नो वेत्ति महिमानं महेशितुः।। चतुर्भुजोऽपि विष्णुर्वै चतुर्व्वक्त्रोऽपि वै विधिः ।। ३।।

sanskrit

O Sanatkumāra, neither Viṣṇu of four arms nor Brahmā of four faces knows the greatness of lord Śiva.

english translation

sanatkumAra no vetti mahimAnaM mahezituH|| caturbhujo'pi viSNurvai caturvvaktro'pi vai vidhiH || 3||

hk transliteration by Sanscript