The story of Alexander the Great’s encounter with Porus and the Battle of the Hydaspes has been related in many historical sources, notably in the fifth book of Arrian’s "Anabasis", Justin’s excerpt from the twelfth book of Pompeius Trogus’ "Historiae Philippicae", Quintus Curtius Rufus’ "Histories of Alexander the Great" and the chapter "Alexander – Caesar" from the "Vitae parallelae" by Plutarch.