Using the Deen as a marketing tool

One day, 'Abdullah Ibn Muhaireez Al-Jumahi (A great Taabi'ee, D. 99H) went to a cloth merchant to buy a garment, and though the merchant did not know him, there was another man present who knew him. Ibn Muhaireez asked the merchant: 'How much is this garment?' The merchant replied: 'It costs such and such.' The man who knew him said: 'Don't you know who this is? This is ibn Muhaireez, so be good to him (i.e. Give him a good price).' Upon hearing this, Ibn Muhaireez became very angry and said: 'I came to buy with my money, and I did not come to buy with my religion,' he then got up and left without buying anything. [Hilyatul Awliyaa wa Tabaqaat Al-Asfiyaa'] ---------------- Al-Awzaa'ee rahimahullah said of ibn Muhaireez: "من كان مقتديا فليقتد بمثل ابن محيريز" “Whoever wants to follow a good example, let him follow the example of Ibn Muhaireez.” [Tahdheeb At-Tahdheeb (2/ 429)]