Narrated Aisha, Ummul Mu'minin:

The Messenger of Allah ﷺ said: By his good character a believer will attain the degree of one who prays during the night and fasts during the day.

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا يَعْقُوبُ، - يَعْنِي الإِسْكَنْدَرَانِيَّ - عَنْ عَمْرٍو، عَنِ الْمُطَّلِبِ، عَنْ عَائِشَةَ، رَحِمَهَا اللَّهُ قَالَتْ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ
" إِنَّ الْمُؤْمِنَ لَيُدْرِكُ بِحُسْنِ خُلُقِهِ دَرَجَةَ الصَّائِمِ الْقَائِمِ " .