טְבִילוּתָא, Snh. 39ᵃ ומי סלקא ט׳ בנורא is the law requiring immersion (for levitical purification) complied with by putting the object in fire? Ib. עיקר ט׳ וכ׳ the true purification is by fire (ref. to Num. XXXI, 23).