Charak Samhita
तौ विपाट्याहरेत् क्षीरं शस्त्रेण मतिमान् भिषक्। द्विवर्षं वा त्रिवर्षं वा शिशिरान्ते विशेषतः॥९॥
॥ Method of collection॥ • Incise the plants which are two-three years old and mature, with a sharp instrument. • Collect the milky latex. • The collection is done at the end of the winter.
english translation
tau vipATyAharet kSIraM zastreNa matimAn bhiSak। dvivarSaM vA trivarSaM vA zizirAnte vizeSataH॥9॥
hk transliteration by Sanscript