The Compendium of Bheḷa 6.8.23

6.8.23

gajenāpyathavāśvena trāsayetpannagena vā | punastṛṇāgninā vāpi sarvatassamavākiret ||

Or he should terrify him with an elephant, or with a horse, or with a serpent; / or again, one should scatter grass-fire around him on all sides;