Kural - 835

The fool will merit hell in one brief life on earth,
In which he entering sinks through sevenfold round of birth

Explanation
A fool can procure in a single birth a hell into which he may enter and suffer through all the seven births.

Tamil Transliteration
Orumaich Cheyalaatrum Pedhai Ezhumaiyum
Thaanpuk Kazhundhum Alaru.