It was narrated that Suhaib said:
"The Messenger of Allah recited this Verse: 'For those who have done good is the best reward and even more.' Then he said: 'When the people of Paradise enter Paradise, and the people of the Fire enter the Fire, a caller will cry out: "O people of Paradise! You have a covenant with Allah and He wants to fulfill it." They will say: "What is it?" Has Allah not made the Balance (of our good deeds) heavy, and made our faces bright, and admitted us to Paradise and saved us from Hell?" Then the Veil will be lifted and they will look upon Him, and by Allah, Allah will not give them anything that is more beloved to them or delightful, than looking upon Him.'"
حَدَّثَنَا عَبْدُ الْقُدُّوسِ بْنُ مُحَمَّدٍ، حَدَّثَنَا حَجَّاجٌ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنْ صُهَيْبٍ، قَالَ تَلاَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ هَذِهِ الآيَةَ ‏{لِلَّذِينَ أَحْسَنُوا الْحُسْنَى وَزِيَادَةٌ}‏ وَقَالَ ‏"‏ إِذَا دَخَلَ أَهْلُ الْجَنَّةِ الْجَنَّةَ وَأَهْلُ النَّارِ النَّارَ نَادَى مُنَادٍ يَا أَهْلَ الْجَنَّةِ إِنَّ لَكُمْ عِنْدَ اللَّهِ مَوْعِدًا يُرِيدُ أَنْ يُنْجِزَكُمُوهُ ‏.‏ فَيَقُولُونَ وَمَا هُوَ أَلَمْ يُثَقِّلِ اللَّهُ مَوَازِينَنَا وَيُبَيِّضْ وُجُوهَنَا وَيُدْخِلْنَا الْجَنَّةَ وَيُنْجِنَا مِنَ النَّارِ قَالَ فَيَكْشِفُ الْحِجَابَ فَيَنْظُرُونَ إِلَيْهِ فَوَاللَّهِ مَا أَعْطَاهُمُ اللَّهُ شَيْئًا أَحَبَّ إِلَيْهِمْ مِنَ النَّظَرِ إِلَيْهِ وَلاَ أَقَرَّ لأَعْيُنِهِمْ ‏"‏ ‏.‏
GradeSahih (Darussalam)
English reference : Vol. 1, Book 1, Hadith 187
Arabic reference : Book 1, Hadith 192