Kamasutra
परितोषितोऽपि दास्यति न वेत्यर्थसंशयः ॥ २१ ॥
Even if he is satisfied, one does not know 'whether he will pay or not. The profit is doubtful ॥ artha sanshaya॥.
english translation
शुद्धसंशय: अर्थसंशय-सन्तुष्ट होने पर भी देगा या नहीं ? यह अर्थसंशय है॥ २१ ॥
hindi translation
paritoSito'pi dAsyati na vetyarthasaMzayaH ॥ 21 ॥
hk transliteration by Sanscript