Answer:
An important Hadith (saying) of the Prophet is that religion is not what one formally or ritualistically practices but how one deals with others. It is therefore not sufficient to be pious without performing deeds which demonstrate one's beliefs. It is reported that the Prophet once entered a mosque and saw at prayer a venerable old man with a long white beard. He was told that the man was in the mosque all day long, worshipping and dispensing the words of Allah to others. The Prophet then asked how he earned his living and was told that a merchant, not known for his piety, supported him. The Prophet remarked that of the two, the merchant was indeed the more worthy.