Asma ul Husna (اسماء الحسنى)

And (all) the Most Beautiful Names belong to Allah, so call on Him by them, and leave the company of those who belie or deny (or utter impious speech against) His Names. They will be requited for what they used to do. (Surat Al-A’raf 7:180)

Allah! La ilahla illa Huwa (none has the right to be worshipped but He)! To Him belong the Best Names. (Surat Taha 20:8)

He is Allah, the Creator, the Inventor of all things, the Bestower of forms. To Him belong the Best Names . All that is in the heavens and the earth glorify Him. And He is the All-Mighty, the All-Wise. (Surat Al-Hashr 59:24)

Narrated Abu Huraira: Prophet Muhammad SAW said, “Allah has ninety-nine names, i.e. one-hundred minus one, and whoever knows them will go to Paradise.” (Sahih Al-Bukhari 50:894)

Abu Huraira reported Prophet Muhammad SAW 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 Prophet Muhammad SAW that he said: “He is Odd (one) and loves odd number.” (Sahih Muslim 35:6476)