The Compendium of Bheḷa 6.6.54

6.6.54

prasadya khadiro hanti kuṣṭhāni sugurūṇy api | saṃvṛddho lokaparyāye yugāntāgnirnagāniva ||

Khadira, when purified, destroys even very severe skin diseases, / just as the fire at the end of an eon, fully flared up in the cycle of the world, [destroys] the mountains.