The 99 Names · The Closing Verses of Surat Al-Hashr
Al-'Aalim العالم
The One whose knowledge encompasses everything, Knower of the unseen and the witnessed; nothing is hidden from Him.
Explanation
A detailed explanation of this name (in Arabic) is in: Sharh Asma' Allah al-Husna fi Daw' al-Kitab wa al-Sunnah — Dr. Sa'eed ibn 'Ali ibn Wahf al-Qahtani — p. 89 ↗
The author explains this name together with: Al-'Aleem, Al-Khabeer
Evidence
﴿هُوَ ٱللَّهُ ٱلَّذِي لَآ إِلَٰهَ إِلَّا هُوَۖ عَٰلِمُ ٱلۡغَيۡبِ وَٱلشَّهَٰدَةِۖ هُوَ ٱلرَّحۡمَٰنُ ٱلرَّحِيمُ ٢٢﴾
Call upon Allah by this name
“To Allah belong the Beautiful Names, so call upon Him by them” — Al-A'raf 180
From the Quran
﴿قُلِ ٱللَّهُمَّ فَاطِرَ ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضِ عَٰلِمَ ٱلۡغَيۡبِ وَٱلشَّهَٰدَةِ أَنتَ تَحۡكُمُ بَيۡنَ عِبَادِكَ فِي مَا كَانُواْ فِيهِ يَخۡتَلِفُونَ﴾
Az-Zumar 46
From the Prophetic Sunnah
The Prophet ﷺ taught it to Abu Bakr for morning and evening
«اللهم فاطر السموات والأرض، عالم الغيب والشهادة، رب كل شيء ومليكه، أشهد أن لا إله إلا أنت، أعوذ بك من شر نفسي وشر الشيطان وشركه»
Jami' at-Tirmidhi (3392) and Sunan Abi Dawud (5067)
Grading: Authentic — al-Albani, Sahih at-Tirmidhi (2701)