Kural - 326

Ev'n death that life devours, their happy days shall spare,
Who law, 'Thou shall not kill', uphold with reverent care

Explanation
Yama, the destroyer of life, will not attack the life of him, who acts under the determination of never destroying life.

Tamil Transliteration
Kollaamai Merkon Tozhukuvaan Vaazhnaalmel
Sellaadhu Uyirunnung Kootru.