Sunan Abi Dawud, Hadith 4780 ⓘ
Narrated Aisha, Ummul Mu'minin: The Messenger of Allah 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 صلى الله عليه وسلم يَقُولُ " إِنَّ الْمُؤْمِنَ لَيُدْرِكُ بِحُسْنِ خُلُقِهِ دَرَجَةَ الصَّائِمِ الْقَائِمِ " .
also referenced under: Hadith 4798 (DarusSalam) & Book 41, Hadith 4780 (USC-MSA)