MuA zu RHT, 1, 13.2, 13.0 tathā rasarāje'pi darśayati kāṣṭhauṣadhīdhātumahārasoparasādīnāṃ layo jñeyaḥ taṭasthalakṣaṇena layasya krama upadiṣṭaḥ //