انظُرْ كَيْفَ فَضَّلْنَا بَعْضَهُمْ عَلَى بَعْضٍ وَلَلاٌّخِرَةُ أَكْبَرُ دَرَجَـتٍ وَأَكْبَرُ تَفْضِيلاً

(See how We favor one above another, and verily, the Hereafter will be greater in degrees and greater in favor.) (17:21). This means that just as there are differences between them in this world -- where one may be poor and in straitened circumstances while another is rich and enjoys a life of plenty -- so they will be in the Hereafter. There one will reside in apartments in the highest levels of Paradise, whilst another will be in the lowest levels of Hell. As the Prophet said, describing the best of people in this world:

«قَدْ أَفْلَحَ مَنْ أَسْلَمَ وَرُزِقَ كَفَافًا وَقَنَّعَهُ اللهُ بِمَا آتَاه»

Commentary

This verse has appeared a little earlier (36) almost in the same words. As obvious, the same thing has been mentioned here, however, it has a difference. At this place, there is an addition of: مِنْ عِبَادِهِ (out of His servants) after: مَن يَشَاءُ whomsoever He wills) and: لَہ، (lahu: for him or whomever) after: یَقدِر (yaqdir: straitens). From the statement: مِنْ عِبَادِهِ (min 'ibadihi: from His servants), it is gathered that this rule of guidance has been put forth for His particular servants, that is, for the believers, and the purpose is to alert people of faith that they should not start loving wealth and comfort to the extent that their hearts choke when it comes to spending at occasions and on rights enjoined by Allah Ta’ ala. As for the earlier verse (36) that carries the same text, it was addressed to disbelievers and polytheists who prided on the worldly assets of wealth and children and declared these to be the proof of their success in the Hereafter. Thus, any discordance between the addressee and the purpose of address stands eliminated. Maulana Ashraf ` Ali Thanavi (رح) ، in his khulasah of Tafsir Bayn ul-Qur'an, has taken the same approach by first adding 'the believers' in parenthesis while explaining this verse.