Shiva Purana

siva.sh/siva-purana/rudra-samhita/147/19

ये चाप्यन्ये करिष्यंति व्रतं पाशुपतं मम ।। मोक्ष्यंति ते न संदेहः पशुत्वात्सुरसत्तमाः ।। १९ ।।

sanskrit

O excellent gods, there is no doubt about it that those who perform my Pāśupata rite will become liberated.

english translation

ye cApyanye kariSyaMti vrataM pAzupataM mama || mokSyaMti te na saMdehaH pazutvAtsurasattamAH || 19 ||

hk transliteration by Sanscript