He Is successful who has accepted Islam, who has been provided with sufficient for his want and been made contented by Allah with what He has given him.
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ قَدْ أَفْلَحَ مَنْ أَسْلَمَ وَرُزِقَ كَفَافًا وَقَنَّعَهُ اللَّهُ بِمَا آتَاهُ