The Reward of the Believers
When Allah tells us about the state of the people of Hell -- we seek refuge with Allah from that state of punishment, vengeance, burning and chains -- and the garments of fire that have been prepared for them, He then tells us about the state of the people of Paradise -- we ask Allah by His grace and kindness to admit us therein.
He tells us;
إِنَّ اللَّهَ يُدْخِلُ الَّذِينَ امَنُوا وَعَمِلُوا الصَّالِحَاتِ جَنَّاتٍ تَجْرِي مِن تَحْتِهَا الاَْنْهَارُ
Truly, Allah will admit those who believe and do righteous good deeds, to Gardens underneath which rivers flow,
means, these rivers flow throughout its regions, beneath its trees and palaces, and its inhabitants direct them to go wherever they want.
يُحَلَّوْنَ فِيهَا
wherein they will be adorned (-- with jewelry --),
مِنْ أَسَاوِرَ مِن ذَهَبٍ وَلُوْلُوًا
with bracelets of gold and pearls,
means, on their arms, as the Prophet said in the agreed-upon Hadith;
تَبْلُغُ الْحِلْيَةُ مِنَ الْمُوْمِنِ حَيْثُ يَبْلُغُ الْوَضُوء
The jewelry of the believer (in Paradise) will reach as far as his Wudu' reached.
وَلِبَاسُهُمْ فِيهَا حَرِيرٌ
and their garments therein will be of silk.
in contrast to the garments of fire worn by the inhabitants of Hell, the people of Paradise will have garments of silk, Sundus and Istabraq fine green silk and gold embroidery, as Allah says;
عَـلِيَهُمْ ثِيَابُ سُندُسٍ خُضْرٌ وَإِسْتَبْرَقٌ وَحُلُّواْ أَسَاوِرَ مِن فِضَّةٍ وَسَقَـهُمْ رَبُّهُمْ شَرَاباً طَهُوراً
إِنَّ هَـذَا كَانَ لَكُمْ جَزَاءً وَكَانَ سَعْيُكُم مَّشْكُوراً
Their garments will be of green Sundus, and Istabraq. They will be adorned with bracelets of silver, and their Lord will give them a pure drink. (And it will be said to them);"Verily, this is a reward for you, and your endeavor has been accepted." (76;21-22)
In the Sahih, it says;
لَاا تَلْبَسُوا الْحَرِيرَ وَلَاا الدِّيبَاجَ فِي الدُّنْيَا فَإِنَّهُ مَنْ لَبِسَهُ فِي الدُّنْيَا لَمْ يَلْبَسْهُ فِي الاْاخِرَة
Do not wear fine silk or gold embroidery in this world, for whoever wears them in this world, will not wear them in the Hereafter.
Abdullah bin Az-Zubayr said,
"Those who do not wear silk in the Hereafter are those who will not enter Paradise. Allah says;
وَلِبَاسُهُمْ فِيهَا حَرِيرٌ
(and their garments therein will be of silk)."
And He tells us