Charak Samhita
धमनीनामपूर्वाणां जालमत्यर्थशोभनम्। ललाटे दृश्यते यस्य षण्मासान्न स जीवति ॥८॥
Sudden appearance of extremely shiny and prominent vasculature on fore head of an individual indicates that maximum life span of less than six months.
english translation
dhamanInAmapUrvANAM jAlamatyarthazobhanam। lalATe dRzyate yasya SaNmAsAnna sa jIvati ॥8॥
hk transliteration by Sanscript