Shiva Purana

siva.sh/siva-purana/rudra-samhita/112/22

योऽयं ब्रह्मास्तिऽ रजसा विश्वमूर्तिः पितामहः ।। त्वत्प्रसादात्प्रभो विष्णुस्सत्त्वेन पुरुषोत्तमः ।। २२ ।।

sanskrit

Your Rājasika manifestation is Brahmā, the grandfather. O lord, thanks to your grace, Viṣṇu is Puruṣottama by your Sāttvika nature.

english translation

yo'yaM brahmAsti' rajasA vizvamUrtiH pitAmahaH || tvatprasAdAtprabho viSNussattvena puruSottamaH || 22 ||

hk transliteration by Sanscript