Ramayana
यस्मात्स कृतवान्पापमीदृशं घोरसंहितम् । तस्मात्प्राप्स्यति दुर्मेधाः फलं पापस्य कर्मणः ॥ 7-81-6 ॥
Because that man of evil mind committed such a sin, fraught with horror, he shall therefore reap the fruit of his sinful deed.
english translation