Charak Samhita
भविष्यन्त्या असम्प्राप्तिरतीताया अनागमः। साम्प्रतिक्या अपि स्थानं नास्त्यर्तेः संशयो ह्यतः ॥१२॥
17-3. even the present one is, in a sense, momentary and so in the absence of continuity, it is non manageable to any treatment. Hence the dilemma.
english translation
bhaviSyantyA asamprAptiratItAyA anAgamaH। sAmpratikyA api sthAnaM nAstyarteH saMzayo hyataH ॥12॥
hk transliteration by Sanscript