Musilms are obligated to perform the Hajj at least once in their lifetime if they are healthy and have the financial means to do so. The Prophet Muhammad (Peace and Blessings Be Upon Him) says that the reward for an accepted Hajj is none other than Paradise.
Shahadah
As Muslims we all believe that there is only one God, and that Muhammad (Peace and Blessings Be Upon Him) is His Final Prophet and Messenger sent down for the entirety of Mankind.