Kural - 530

Who causeless went away, then to return, for any cause, ask leave;
The king should sift their motives well, consider, and receive

Explanation
When one may have left him, and for some cause has returned to him, let the king fulfil the object (for which he has come back) and thoughtfully receive him again.

Tamil Transliteration
Uzhaippirindhu Kaaranaththin Vandhaanai Vendhan
Izhaith Thirundhu Ennik Kolal.