Kural - 1054

Like giving alms, may even asking pleasant seem,
From men who of denial never even dream

Explanation
To beg of such as never think of withholding (their charity) even in their dreams, is in fact the same as giving (it oneself);.

Tamil Transliteration
Iraththalum Eedhale Polum Karaththal
Kanavilum Thetraadhaar Maattu.