League of Assassins' prophecy

The Prophecy stated the one who survived Ra's al Ghul's sword would succeed him and become the next Ra's al Ghul.

History
It is unknown if this prophecy applied to every Ra's al Ghul but for Ra's al Ghul, the prophecy stated the one who survived his sword would become his successor. This successor was believed to be Oliver Queen who was stabbed by him and pushed off a cliff and survived. However, the prophecy was in reality referring to Malcolm Merlyn who was tortured by his sword during his captivity but survived.