قُلْتُ لَهُ مَا الْعَقْلُ قَالَ مَا عُبِدَ بِهِ الرَّحْمَنُ وَ اكْتُسِبَ بِهِ الْجِنَانُ قَالَ قُلْتُ فَالَّذِي[2] كَانَ فِي مُعَاوِيَةَ فَقَالَ تِلْكَ النَّكْرَاءُ[3] تِلْكَ الشَّيْطَنَةُ وَ هِيَ شَبِيهَةٌ بِالْعَقْلِ وَ لَيْسَتْ بِالْعَقْلِ.
Abu 'Abdillah (al-Sadiq) (as) was asked, 'What is intellect (al-'Aql)?'. He said, ‘It is what someone worships ar-Rahman with and attains paradise.’ I then asked, 'What was the thing within Mu'awiya?'. He replied, ‘That was heinousness, that was devilry and it is similar to the intellect but it is not intellect.’