Charak Samhita
तत्र श्लोकः- इमानि लिङ्गानि नरेषु बुद्धिमान् विभावयेतावहितो मुमूर्षुषु। क्षणेन भूत्वा ह्युपयान्ति कानिचिन्नचाफलं लिङ्गमिहास्ति किञ्चन ॥२७॥
॥ Summary॥ Here is the re-capitulatory verse: The wise physician should closely search for these signs repeatedly because some of them disappear in a short moment after their manifestation.
english translation
tatra zlokaH- imAni liGgAni nareSu buddhimAn vibhAvayetAvahito mumUrSuSu। kSaNena bhUtvA hyupayAnti kAnicinnacAphalaM liGgamihAsti kiJcana ॥27॥
hk transliteration by Sanscript