al-Imaam, narrated that someone asked Abu-d-Dardaa’, radhiyallaahu `anhu, to advise him, he replied:
“Remember Allaah when you are comfortable, He will remember you when you are in difficulty, and when you set your eyes upon something in this world, think about how it will end!”
Abu ad-Dardaa’ said:
“It would not be my greatest pleasure to open a vending shop at the threshold of the mosque, and even if it were to bring me three hundred dinars of net business per day, or even if it would help me, by being there, not to miss a single congregational prayer at the mosque. I am not saying that Allaah, the Lord of majesty and glory, did not make trading permissible or that He did not forbid usury, I am only desiring to be among those.” Surah24:37]. Narrated by Ahmad.