Kural - 1077

From off their moistened hands no clinging grain they shake,
Unless to those with clenched fist their jaws who break

Explanation
The mean will not (even) shake off (what sticks to) their hands (soon after a meal) to any but those who would break their jaws with their clenched fists.

Tamil Transliteration
Eerngai Vidhiraar Kayavar Kotirutaikkum
Koonkaiyar Allaa Thavarkku.