Board Thread:Skyrim/@comment-137.147.207.117-20130817015609/@comment-6881629-20130817163407

player.additem xx000800 1

An easy way to find out the xx is to have a item from the DLC (like some Dawnguard weapon or armor) open the console and click on the item it should show you the id code for that item with the first two numbers being what the xx is for Auriel's Bow.