Charak Samhita
ओषधीनां परा भूमिर्हिमवाञ् शैलसत्तमः। तस्मात्फलानि तज्जानि ग्राहयेत्कालजानि तु ॥३८॥
[Qualities of ideal drugs for therapeutic use] Himalaya is excellent among the mountains, which is the best habitat of medicinal plants.
english translation
oSadhInAM parA bhUmirhimavAJ zailasattamaH। tasmAtphalAni tajjAni grAhayetkAlajAni tu ॥38॥
hk transliteration by Sanscript