Sahih Muslim Book 035, Hadith Number 6476.

Chapter : The names of Allah, the Exalted, and the merit of one who enumerates them.

Abu Huraira reported Allah's Apostle (may peace be upon him) as saying: Verily, there are ninety-nine names for Allah, i.e. hundred excepting one. He who enumerates them would get into Paradise. And Hammam has made this addition on the authority of Abu Huraira who reported it from Allah's Apostle (may peace be upon him) that he said: "He is Odd (one) and loves odd number."