The Compendium of Bheḷa 6.20.33

6.20.33

samūlaphalaśākhāṃ tu kuṭṭayetkaṇṭakārikām | tāṃ pacetsaliladroṇe caturbhāgāvaśeṣitam ||

One should crush kaṇṭakārī together with roots, fruit, and branches; / one should boil it in a droṇa of water until reduced to one-fourth.