Saurapurana 21.18

21.18

tejastataḥ syāttriguṇaṃ saśabdasparśarūpavat
rasamātraṃ guṇāḥ sarve traya ādyāḥ samāviśan

Fire therefore has three qualities, possessing sound, touch, and form. / All three primary qualities entered the subtle element of taste;