عن أبي أيوب الأنصاري قال: جاء رجل إلى النبي صلى الله عليه وسلم فقال: يا رسول الله عظني وأوجز قال: إذا قمت إلى صلاتك فصل صلاة مودع ولا تكلم بكلام تعتذر منه غدا وأجمع الإياس مما في أيدي الناس (مسند أحمد، الرقم: 23498)

Hazrat Abu Ayyoob (radhiyallahu ‘anhu) reports that on one occasion, a Sahaabi came to Rasulullah (sallallahu ‘alaihi wasallam) and said, “O Rasul of Allah (sallallahu ‘alaihi wasallam)! Give me some advice, and keep the advice brief (so that it will be easy for me to remember it and practice upon it).” Rasulullah (sallallahu ‘alaihi wasallam) replied, “When you stand up to perform your salaah, then perform the salaah of one who is departing (i.e. as though it is the salaah of a person who is about to depart from the world and is performing his last salaah in this world), and do not utter any statement for which you will have to present an excuse tomorrow (on the Day of Qiyaamah), and make a firm resolve that you will not have any expectation and hopes in that (wealth) which is in the hands of others (i.e. become content with that which you possess, and do not aspire for those worldly possessions which are by others).”