गरुडपुराण - तपस्वि

तृणपर्णोदकाहाराः सततं वनवासिनः ।
जंबूकाखुमृगाद्यश्च तापसास्ते भवन्ति किम् ॥

- गरुडपुराण

If everybody who live in the forest and eat only grass and leaves were to attain sainthood - are all the foxes, mice and deer saints?

- Garudapurana