Charak Samhita
तस्य स्थानं करौ पादावङ्गुल्यः सर्वसन्धयः । कृत्वाऽऽदौ हस्तपादे तु मूलं देहे विधावति ॥१२॥
॥ Sites of affliction॥ Its sites are hands, feet, fingers and all other joints. At first it settles its root (initial involvement) in hands and feet and then spread all over the body.
english translation
tasya sthAnaM karau pAdAvaGgulyaH sarvasandhayaH । kRtvA''dau hastapAde tu mUlaM dehe vidhAvati ॥12॥
hk transliteration by Sanscript