Every Muslim knows that the key to Paradise is the statement, "There is none worthy of worship except Allah." Yet too many Muslims simply rely upon this statement and believe that as long as they have made this statement, nothing will harm them. They think will be granted Paradise because of this mere verbal statement of the Shahaadah.
As many scholars state, though, this statement or testimony is the key to Paradise. The famous Taabi'i Wahb ibn Munabbih was once asked, "Isn't the statement of laa ilaaha ill-Allah the key to Paradise." He answered, "Yes, but every key has ridges. If you come with the key that has the right ridges, the door will open for you. Yet if you do not have the right ridges the door will not open for you."