Charak Samhita
स क्षतः क्षीयतेऽत्यर्थं तथा शुक्रौजसोः क्षयात्। अव्यक्तं लक्षणं तस्य पूर्वरूपमिति स्मृतम् ॥१२॥
॥ Prodromal signs and symptoms॥ Signs and symptoms in unmanifested form (less manifested) constitute the premonitory signs and symptoms of this disease. (There is no appearance of premonitory sings).
english translation
sa kSataH kSIyate'tyarthaM tathA zukraujasoH kSayAt। avyaktaM lakSaNaM tasya pUrvarUpamiti smRtam ॥12॥
hk transliteration by Sanscript