The first time you cast this spell you perform a ritual over the course of 1 hour, which can be done during a short rest, focusing over the weapon you want to bond to this spell. The weapon must be within your reach throughout the ritual, at the conclusion of which you touch the weapon and forge the bond. If the chosen weapon is already bond to another person or to a feature like the Eldrich Knight "Weapon Bond", the spell fails. 

 Once you create this bond, you can cast this spell: if it is on the same plane of existence, you can summon that weapon, causing it to teleport instantly to your hand.

You can break the bond with the weapon performing the same 1 hour ritual on another weapon. If the weapon is destroyed, the bond is also broken.