Believe in HIS BOOKS: Al Nisa 4:136
Here is another interesting verse. I just posted a response to a comment on a rather old post, Islam and Tahriif, and this verse came to my mind.
One thing that is particularly important is that in the second part of the verse we have a definition of those who are lost:
...whoever disbelieves in Allah and his angels and his books and his messengers and the last day has gone far astray.
Interesting to notice the plural kutubihi which is formed by the plural of kitaab (book) with the attached pos. pronoun, which here because it follows the preposition "bi" (to believe IN) becomes "kutubihi". Believe in his books. How can Muslims believe in his books if they aren't anywhere to be found, other than the Quran?