Recipe: Flask of Distilled Wisdom

Source
This item is a reputation reward; you must be with Cenarion Expedition to purchase it for  from  in Zangarmarsh.

Additionally, Balnazzar in Stratholme has a 2% chance to drop this recipe. The dropped version does not require Cenarion Expedition reputation to use, and as it is not soulbound it can be sold to other players.