Dhammapada 16 [Khuddaka Nikaya]

I- Yamakavagga, The Pairs 
11- Dhammika-upasaka Vatthu

Idha modati pecca modati, katapunno ubhayattha modati;
so modati so pamodati, disva kammavisuddhimattano.

16: Here he rejoices, hereafter he rejoices; one who performed meritorious deeds rejoices in both existences. He rejoices and greatly rejoices when he sees the purity of his own deeds.
 
Reference: 
Mya Tin, Daw, tr. The Dhammapada: Verses and Stories. Rangoon: Burma Tipitaka Association, 1986.
 
Posted by Nyan U