Kural - 896

Though in the conflagration caught, he may escape from thence:
He 'scapes not who in life to great ones gives offence

Explanation
Though burnt by a fire (from a forest), one may perhaps live; (but) never will he live who has shown disrespect to the great (devotees).

Tamil Transliteration
Eriyaal Sutappatinum Uyvuntaam Uyyaar
Periyaarp Pizhaiththozhuku Vaar.