Charak Samhita
जले चतुर्गुणे पक्त्वा पादशेषेण तत्समम् । सिद्धं सर्पिः पिबेद्गुल्मश्वासार्तिक्षयकासनुत् ॥१६२॥
till the quantity of water reduces to one-fourth. To this decoction equal quantity of ghrita should be added and cooked. Intake of this cures gulma, shwasa and kshayajakasa.
english translation
jale caturguNe paktvA pAdazeSeNa tatsamam । siddhaM sarpiH pibedgulmazvAsArtikSayakAsanut ॥162॥
hk transliteration by Sanscript