Al-Muminun's opening description of the successful believers, humility in prayer, avoidance of vain talk, charity, chastity and guardianship of trusts (23:1-9), was taken up in later Sufi and broader devotional literature as a practical checklist for personal self-examination, muhasaba, with some spiritual writers structuring periodic reflection directly around this list of named qualities rather than around doctrinal belief alone, treating conduct as the more reliable test of the state of one's faith.
The surah's final verse, a prayer asking forgiveness and mercy and naming God 'the best of the merciful' (23:118), is commonly recited as a closing devotional formula independently of the surah's content, and its placement as the last words of a surah otherwise concerned with warning and judgement is read by commentators as a deliberate closing turn toward hope after an extended argument about the consequences of denial and the finality of death. Where the surah's earlier account of human formation describes the process itself, this closing verse instead supplies the disposition, humility and trust, with which classical commentary holds each stage of life ought to be met, from formation to final judgement.