The Peak of Eloquence · Hadith 1792 (#Passage #151)

١٢٥. وَقَالَ (عليه السلام): لَأَنْسُبَنَّ الْإِسْلَامَ نِسْبَةً لَمْ يَنْسُبْهَا أَحَدٌ قَبْلِى الْإِسْلَامُ هُوَ التَّسْلِيمُ وَالتَّسْلِيمُ هُوَ الْيَقِينُ وَالْيَقِينُ هُوَ التَّصْدِيقُ وَالتَّصْدِيقُ هُوَ الْإِقْرَارُ وَالْإِقْرَارُ هُوَ الْأَدَاءُ وَالْأَدَاءُ هُوَ الْعَمَلُ.

125. Amīr al-mu’minīn, peace be upon him, said: I am defining Islam as no one has defined before me: Islam is submission, submission is conviction, conviction is affirmation, affirmation is acknowledgement, acknowledgement is discharge (of obligations), and discharge of obligations is action.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).