Arabic text
عن عائشة رضي الله عنها قالت: سمعت رسول الله صلى الله عليه وسلم يقول: «إنَّ المُؤْمِنَ ليُدرِكُ بِحُسْنِ خُلُقِهِ دَرَجَةَ الصَّائِمِ القَائِمِ».
Translation
‘Ā’ishah (may Allah be pleased with her) reported: I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: "Verily, a believer can attain, by his good manners, the rank of one who fasts and prays often."
Explanation
The Prophet (may Allah's peace and blessings be upon him) points out that good manners enable one to reach the rank of a person who persistently fasts during the day and prays at night. The core of good manners is doing good, speaking good words, having a smiling face, and refraining from harming people and bearing harm from them.
Source: HadeethEnc.com