51: Al-Haqq
Below is a reference to the Beautiful Name of Allah in Quran or Hadith:
Yusuf Ali (Surat Luqmān (Luqman) Surah #31 of 114, Verse #30 of 34)
That is because Allah is the (only) Reality, and because whatever else they invoke besides Him is Falsehood; and because Allah,- He is the Most High, Most Great.