Sunan Abi Dawud 4798
سنن أبي داود#4798Sahihحَدَّثَنَا 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 " .
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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 43:26