Dhammapada 1 [Khuddaka Nikaya]

I- Yamakavagga, The Pairs 
1- Cakkhupalatthera Vatthu

Manopubbangama dhamma,
manosettha manomaya;
manasa ce padutthena,
bhasati va karoti va;
tato nam dukkhamanveti,
cakkamva vahato padam.

All mental phenomena have mind as their forerunner; they have mind as their chief; they are mind-made. If one speaks or acts with an evil mind, 'dukkha' follows him just as the wheel follows the hoofprint of the ox that draws the cart.

Reference:
Mya Tin, Daw, tr. The Dhammapada: Verses and Stories. Rangoon: Burma Tipitaka Association, 1986.

Posted by Nyan U