What you have of the worldly possessions will come to an end, and what is with Allah of the treasures of His mercy will remain and will not come to an end.

And it was read 'We will surely reward' with the letter 'n' and with the letter 'y' for those who were patient with the harm of the polytheists and the hardships of Islam. If you say: Why did you use the singular for 'foot' and make it indefinite? [Mahrud said: 'If you say why did you use the singular for 'foot' and make it indefinite...'] Ahmad said: And among the types of conveying indefiniteness here is the indication of a small number: its conveyance in His saying, 'And an ear that hears it' and in His saying, 'And let every soul look to what it has brought forth for tomorrow.' He made 'ear' and 'soul' indefinite to indicate the small number of those who are aware among the people regarding what is required of them, and of those who look among the creation regarding their matter of return. And Allah is the Grantor of success. I say: It is to emphasize the gravity of a single foot slipping from the path of truth after it has been firmly established upon it, so how about many feet?