Abu Huraira reported God's messenger as saying, "The way in which I may be compared with the prophets is by a castle which was beautifully constructed, but in which the place of one brick was left incomplete. Sightseers went round admiring the beauty of its construction with the exception of the place for that brick. Now I have filled up the place of that brick, in me the building is completed and in me the messengers are complete." A version has "I am the brick and I am the seal of the prophets." (Bukhari and Muslim.)