An insight through which Allah-azwj is Worshiped
أَحْمَدُ بْنُ إِدْرِيسَ عَنْ مُحَمَّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ بَعْضِ أَصْحَابِنَا رَفَعَهُ إِلَى أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ قُلْتُ لَهُ مَا الْعَقْلُ قَالَ مَا عُبِدَ بِهِ الرَّحْمَنُ وَ اكْتُسِبَ بِهِ الْجِنَانُ قَالَ قُلْتُ فَالَّذِي كَانَ فِي مُعَاوِيَةَ فَقَالَ تِلْكَ النَّكْرَاءُ تِلْكَ الشَّيْطَنَةُ وَ هِيَ شَبِيهَةٌ بِالْعَقْلِ وَ لَيْسَتْ بِالْعَقْلِ
Ahmad Bin Idrees, from Muhammad Bin Abdul Jabbar, from one of our companions,
(It has been narrated) raising it to Abu Abdullah-asws, said, ‘I said to him-asws, ‘What is the ‘الْعَقْلَ’ (Aql– intellect?’ He-asws said: ‘Through which the Beneficent is worshipped with, and the Gardens are attained with’. I said, ‘So that which was in Muawiya?’ So he-asws said: ‘That is the heinous, that is the devilry, and it may disguise as the أَعْقَلَ (Aql), but it is not the Aql’.[1]
NB: See additional Ahadith: Aql (أَعْقَلَ) -The Light of Soul | Hubeali.com
[1] Al Kafi V 1 – The Book Of Intellect and Ignorance CH 1 H 3