Targum zu Bereschit 49:4

I will liken thee to a little garden in the midst of which there enter torrents swift and strong, which it cannot bear, but is overwhelmed. Be repentant then, Reuben my son, for thou hast sinned, and add not; that wherein thou hast sinned it may be forgiven thee; for it is reckoned to thee as if thou wentest in to have to do with the wife of thy father at the time that thou didst confound my bed upon which thou wentest up.

I will liken thee, my son Reuben, to a little garden into the midst of which there enter rapid torrents, which it cannot bear, but is carried away before them. Be repentant then, my son Reuben, with good works, for thou hast sinned; and sin no more, that that which thou hast sinned may be forgiven thee.