Allāh (الله)
A Greatest Name from the Names of God [1]
يَا أَمِيرَ الْمُؤْمِنِينَ أَخْبِرْنِي عَنْ بِسْمِ «اللَّهِ الرَّحْمنِ الرَّحِيمِ» مَا مَعْنَاهُ فَقَالَ ع: إِنَّ قَوْلَكَ: «اللَّهِ» أَعْظَمُ الْأَسْمَاءِ مِنْ أَسْمَاءِ اللَّهِ تَعَالَى- وَ هُوَ الِاسْمُ الَّذِي لَا يَنْبَغِي أَنْ يَتَسَمَّى بِهِ غَيْرُ اللَّهِ، وَ لَمْ يَتَسَمَ بِهِ مَخْلُوقٌ
A man stood up and asked (Imam Ali-asws Ibn Abi Talib-asws), ‘O Commander of the Faithful-asws, inform me about ‘In the Name of Allah the Beneficent the Merciful, what is the meaning of it?’ He-asws replied: ‘The Word ‘Allah’ is the Greatest of the Names of Allah-azwj and it is a Name which is not for anyone other than Allah-azwj, and cannot be for any of the creatures.’[2]
[1] https://hubeali.com/isms-and-attributes-of-allah-azwj-part-i-rab-and-its-meanings/
[2] TAFSEER IMAM HASSAN AL ASKARI (A.S.) – S 9