Envy is not justified but in case of two persons only: one who, having been given (knowledge of) the Qur'an by Allah, recites it during the night and during the day (and acts upon it), and the person who, having been given wealth by God, gives it in charity during the night and the day.
قَالَ رَسُولُ اللَّهِ ﷺ لاَ حَسَدَ إِلاَّ عَلَى اثْنَتَيْنِ رَجُلٌ آتَاهُ اللَّهُ هَذَا الْكِتَابَ فَقَامَ بِهِ آنَاءَ اللَّيْلِ وَآنَاءَ النَّهَارِ وَرَجُلٌ آتَاهُ اللَّهُ مَالاً فَتَصَدَّقَ بِهِ آنَاءَ اللَّيْلِ وَآنَاءَ النَّهَارِ