The Prophet (peace be upon him) said: “Allah has ninety-nine names, one hundred less one. He who memorizes them all by heart will enter Paradise.” [Bukhari, Volume 9, Book 93, Number 489]
Abu Hurayrah narrates: There are ninety-nine names of Allah, whoever commits them to memory would go to Paradise. Verily, Allah is odd [Allah is one and it is an odd number] and He loves odd numbers. (Muslim, No. 4835)
Suhrah Araf (#7) Verse 180: Allah’s are the fairest names. Invoke Him by them. And leave the company of those who blaspheme His names. They will be requited what they do.
Surah Isra(#17) Verse 110: Say (unto mankind): Cry unto Allah, or cry unto the Beneficent, unto whichsoever ye cry (it is the same). His are the most beautiful names. And thou (Muhammad), be not loud-voiced in thy worship nor yet silent therein, but follow a way between.
Surah Ta-Ha(#20) Verse 8: Allah! There is no God save Him. His are the most beautiful names.