عن عمر بن الخطاب رضي الله عنه أن رجلا جاء إلى النبي صلى الله عليه وسلم فسأله أن يعطيه فقال النبي صلى الله عليه وسلم ما عندي شيء ولكن ابتع علي فإذا جاءني شيء قضيته فقال عمر يا رسول الله قد أعطيته فما كلفك الله مالا تقدر عليه فكره صلى الله عليه وسلم قول عمر فقال رجل من الأنصار يا رسول الله أنفق ولا تخف من ذي العرش إقلالا فتبسم رسول الله صلى الله عليه وسلم وعرف في وجهه البشر لقول الأنصاري ثم قال بهذا أمرت (الشمائل المحمدية رقم: 338)

Hazrat ‘Umar (radhiyallahu ‘anhu) reports that on one occasion, a needy person came to Rasulullah (sallallahu ‘alaihi wasallam) and then asked him to give him something. Rasulullah (sallallahu ‘alaihi wasallam) replied, “I do not have anything by me (at present to give you), but you may go and purchase something on my name (as a debt upon me). When I receive some wealth, I will settle the debt.” Hazrat ‘Umar (radhiyallahu ‘anhu) said, “O Messenger of Allah (sallallahu ‘alaihi wasallam)! You have already given him (prior to this, what you had possessed). Allah Ta‘ala did not make you responsible for that which you do not have ability over (on account of which you do not need to allow him to take a debt on your name).” Rasulullah (sallallahu ‘alaihi wasallam) was not pleased with this statement (and advice) of Hazrat ‘Umar (radhiyallahu ‘anhu). Thereupon, a person from the Ansaar said, “O Rasul of Allah (sallallahu ‘alaihi wasallam), spend whatever you wish, and do not fear any decrease from the Lord of the ‘Arsh (Throne).” Rasulullah (sallallahu ‘alaihi wasallam) smiled and the happiness could be seen on his mubaarak countenance due to the statement of the Ansaari. Rasulullah (sallallahu ‘alaihi wasallam) then said, “This is exactly what I have been commanded to do (by Allah Ta‘ala).”