Mbh 13.1.30

"'"Kala said, 'Neither Mrityu, nor this serpent, nor I, O fowler, am guilty of the death of any creature. We are merely the immediate exciting causes of the event. O Arjunaka, the Karma of this child formed the exciting cause of our action in this matter. There was no other cause by which this child came by its death. It was killed as a result of its own Karma. It has met with death as the result of its Karma in the past. Its Karma has been the cause of its destruction. We all are subject to the influence of our respective Karma. Karma is an aid to salvation even as sons are, and Karma also is an indicator of virtue and vice in man. We urge one another even as acts urge one another. As men make from a lump of clay whatever they wish to make, even so do men attain to various results determined by Karma. As light and shadow are related to each other, so are men related to Karma through their own actions. Therefore, neither art thou, nor am I, nor Mrityu, nor the serpent, nor this old Brahmana lady, is the cause of this child's death. He himself is the cause here.' Upon Kala, O king, expounding the matter in this way, Gautami, convinced in her mind that men suffer according to their actions, spoke thus to Arjunaka.