hadith
5921
۞
Imam Ali (AS) said, Verily a group worshipped Allah, the Glorified, out of desire [for reward] - that is the worship of the traders, and a group worshipped Him out of fear [of punishment] - that is the worship of the slaves, and a group worshipped Him out of gratitude - and that is the worship of the freemen.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : إنَّ قَوْماً عَبَدُوا اللّهَ سُبْحانَهُ رَغْبَةً فَتِلْكَ عِبادَةُ التُّجارِ وقَوْماً عَبَدُوهُ رَهْبَةً فتِلْكَ عِبادَةُ العَبيدِ وَ قَوْماً عَبَدُوهُ شُكْراً فَتِلْكَ عِبادَةُ الأحْرارِ