Brihat Parashara Hora Shastra
कलत्रपो विना स्वर्क्षं व्ययषष्ठाष्टमस्थितः । रोगिणीं कुरुते नारीं तथा तुङ्गादिकं विना ॥ २॥
SICK WIFE. Should Yuvati Lord be in Ari, 8th, or Vyaya, the wife will be sickly. This however does not apply to own Bhava, or exaltation placement, as above.
english translation
kalatrapo vinA svarkSaM vyayaSaSThASTamasthitaH । rogiNIM kurute nArIM tathA tuGgAdikaM vinA ॥ 2॥
hk transliteration by Sanscript