Kural - 568

Who leaves the work to those around, and thinks of it no more;
If he in wrathful mood reprove, his prosperous days are o'er

Explanation
The prosperity of that king will waste away, who without reflecting (on his affairs himself), commits them to his ministers, and (when a failure occurs) gives way to anger, and rages against them.

Tamil Transliteration
Inaththaatri Ennaadha Vendhan Sinaththaatrich
Cheerir Sirukum Thiru.