عَنْ عَائِشَةَ، قَالَتْ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، يَقُولُ: إِنَّ الْمُؤْمِنَ لَيُدْرِكُ بِحُسْنِ خُلُقِهِ دَرَجَةَ الصَّائِمِ الْقَائِمِ (ابو داؤد شریف/کتاب:کتاب الادب/ باب: فی حسن الخلق )
Translation
Hazrat Aisha (may Allah be pleased with her) narrated that the Prophet (peace and blessings of Allah be upon him) said: "A believer, due to his good character, attains the rank of that person who fasts all day and worships (prays) all night." (Sunan Abu Dawud - Translated/Vol:3)