Kautilya's Arthashastra 14.2.27

14.2.27

pāribhadrakappatibalāvañjulavajrakadalīmūlakalkena maṇḍūkavasāsiddhena tailenābhyaktapādo 'ṅgāreṣu gacchati //

Whoever has anointed his legs with the oil extracted from the paste prepared from the roots of páribhadraka (erythrina indica), pratibala (?), vanjula (a kind of ratan or tree), vajra (andropogon muricatum or euphorbia), and kadali (banana), mixed with the serum of the flesh of a frog, can walk over fire (without hurt).