Astanga Hrudaya
तत् क्षौद्रपिप्पलीलिप्तं स्वेद्यं मृद्दर्भवेष्टितम् । शोष्यं मन्दातपेऽग्न्यर्कौ हतो ह्यस्य विकाशिताम् ॥ ५३ ॥
To process them, the roots are smeared with honey and long pepper (pippalī), wrapped in Darbha grass (Desmostachya bipinnata), and coated with a layer of mud. This bundle is then steamed (in a heap of embers). Once steamed, it is uncovered and dried under mild sunlight. Processing them with fire and the sun (agnyarkau) destroys their harsh, channel-weakening (vikāṣitā) toxicity.
english translation
tat kSaudrapippalIliptaM svedyaM mRddarbhaveSTitam । zoSyaM mandAtape'gnyarkau hato hyasya vikAzitAm ॥ 53 ॥
hk transliteration by Sanscript