Shiva Purana

siva.sh/siva-purana/saturda-samhita/2/17

इति प्रोक्ताः स्वरूपास्ते विधिपुत्राष्टविश्रुताः ।। सर्वोपकारनिरताः सेव्याः श्रेयोर्थिभिर्नरैः ।। १७ ।।

sanskrit

O son of Brahmā, thus the well known eight forms have been explained to you. These forms engaged in helping everyone shall be resorted to by those who seek glory.

english translation

iti proktAH svarUpAste vidhiputrASTavizrutAH || sarvopakAraniratAH sevyAH zreyorthibhirnaraiH || 17 ||

hk transliteration by Sanscript