Kural - 527

The crows conceal not, call their friends to come, then eat;
Increase of good such worthy ones shall meet

Explanation
The crows do not conceal (their prey), but will call out for others (to share with them) while they eat it; wealth will be with those who show a similar disposition (towards their relatives).

Tamil Transliteration
Kaakkai Karavaa Karaindhunnum Aakkamum
Annanee Raarkke Ula.