البَاطِنُ
Al-Baatin - The Hidden One
Al-Baatin is the One who is nearest to everything and everyone due to His full awareness of all secrets, and what is yet more hidden.
Occurrence: Both names occur only once.
Evidence: “He is the First and the Last, the Outward and the Inward; and He has full knowledge of all things.” (Surah 57 «Al-Hadid» , Ayah 3)