Qualities of Those Who have Taqwa and Their Reward
Allah the Exalted informs about those who have Taqwa, that on the Day of their Return they will be amidst gardens and springs. To the contrary the miserable ones will be amidst torment, punishment, fire and chains. Allah said,
ءَاخِذِينَ مَآ ءَاتَـهُمْ رَبُّهُمْ
(Taking joy in the things which their Lord has given them.) His statement;
ءَاخِذِينَ
(Taking) describes the state of the people of Taqwa in the midst of gardens and springs. They will receive what their Lord gives them, meaning, delight, happiness and favors. Allah the Exalted and Most Honored said,
إِنَّهُمْ كَانُواْ قَبْلَ ذَلِكَ
(Verily, they were before that), in the life of the world,
Merits of Seeking Forgiveness in the hours before dawn
وَبِالْأَسْحَارِ هُمْ يَسْتَغْفِرُونَ (and in the hours before dawn, they used to pray for forgiveness..., 51:18) The word ashar is the plural of sahar, and it refers to the latter sixth part of the night. This verse speaks of the significance of seeking forgiveness in the latter part of the night. Another verse [ 3:17] also speaks of the significance of seeking forgiveness at the last hours of the night thus: وَالْمُسْتَغْفِرِينَ بِالْأَسْحَارِ (...and who seek forgiveness in pre-dawn hours. - 3:17) It is confirmed in the Sahih collections as well as others, from several Companions, that the Messenger of Allah ﷺ said:
"Allah, the Most High, descends each night to the lowest heaven when the last third of the night remains. He says: 'Is there anyone who is repenting, so that I may accept his repentance? Is there anyone seeking forgiveness, so that I may forgive him? Is there anyone asking of Me, so that I may grant him his request?
Here it may be noted that in this verse Allah is describing the pre-dawn prayer of forgiveness of those righteous ones who, according to the preceding verse, are preoccupied for the major part of the night with the worship of Allah and sleep very little. Thus there seems to be no link between their previous description and their description of asking for forgiveness in this verse, because forgiveness is sought when there are sins. People who spent the entire night in worshipping Allah - what does it mean to seek forgiveness of sins? The answer to this question is that these people have the true appreciation of Allah's majesty, dignity and splendour, and they realise that there are shortcomings in their night-long worship. Therefore they seek Allah's forgiveness for failing to perform His worship as due. (Mazhari)
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 4–18
A picture of the natural system of rainfall has been depicted in these verses. First strong winds blow. Then, they make the clouds drift. Thereafter, the clouds shower beneficial rain on one group, while they wreak destruction on another group in the shape of floods. These events indicate that in this world of God, the Law of the ‘distribution of blessings’ is prevalent. Here some receive less and some more, some are granted boons, while others are deprived of them. This is a hint which shows how, in the world to come after death, human beings are going to fare. There, this principle of the ‘distribution of blessings’ will be applicable in a perfect manner, with perfect justice; everybody will receive only that to which he is entitled and will receive nothing that he did not deserve. There are countless stars in the sky. All of them are revolving in their respective orbits. This wonderful system indicates a deep, inherent meaningfulness. Those who exercise their mental powers will find a lesson in it. But for those who do not, it will be a meaningless charade.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.