عن أنس رضي الله عنه قال: لقي رسول الله صلى الله عليه وسلم أبا ذر فقال: يا أبا ذر ألا أدلك على خصلتين هما أخف على الظهر وأثقل على الميزان من غيرهما قال: بلى يا رسول الله قال: عليك بحسن الخلق وطول الصمت فوالذي نفسي بيده ما عمل الخلائق بمثلهما (الترغيب والترهيب الرقم: 4022)

Hazrat Anas (radhiyallahu ‘anhu) reports that on one occasion, Rasulullah (sallallahu ‘alaihi wasallam) met Hazrat Abu Zar (radhiyallahu ‘anhu) and said to him, “O Abu Zar! Shall I not show you two qualities which are light on the back (i.e. they do not require much effort to carry out), yet they are heavier on the scale (of good deeds) than other good actions?” Hazrat Abu Zar (radhiyallahu ‘anhu) replied, “Certainly inform me, O Rasul of Allah (sallallahu ‘alaihi wasallam)!” Rasulullah (sallallahu ‘alaihi wasallam) then said, “Firmly hold on to good character and remain silent for lengthy periods, for I take an oath by that Being in whose hand lies my life – the creation cannot carry out any good action which can equal these two good actions.”