Sahih Muslim Book - 51, Hadith - 7173

وَحَدَّثَنِى مُحَمَّدُ بْنُ رَافِعٍ حَدَّثَنَا شَبَابَةُ حَدَّثَنِى وَرْقَاءُ عَنْ أَبِى الزِّنَادِ عَنِ الأَعْرَجِ عَنْ أَبِى هُرَيْرَةَ عَنِ النَّبِىِّ -صلى الله عليه وسلم- قَالَ « تَحَاجَّتِ النَّارُ وَالْجَنَّةُ فَقَالَتِ النَّارُ أُوثِرْتُ بِالْمُتَكَبِّرِينَ وَالْمُتَجَبِّرِينَ. وَقَالَتِ الْجَنَّةُ فَمَا لِى لاَ يَدْخُلُنِى إِلاَّ ضُعَفَاءُ النَّاسِ وَسَقَطُهُمْ وَعَجَزُهُمْ. فَقَالَ اللَّهُ لِلْجَنَّةِ أَنْتِ رَحْمَتِى أَرْحَمُ بِكِ مَنْ أَشَاءُ مِنْ عِبَادِى. وَقَالَ لِلنَّارِ أَنْتِ عَذَابِى أُعَذِّبُ بِكِ مَنْ أَشَاءُ مِنْ عِبَادِى وَلِكُلِّ وَاحِدَةٍ مِنْكُمْ مِلْؤُهَا فَأَمَّا النَّارُ فَلاَ تَمْتَلِئُ. فَيَضَعُ قَدَمَهُ عَلَيْهَا فَتَقُولُ قَطْ قَطْ. فَهُنَالِكَ تَمْتَلِئُ وَيُزْوَى بَعْضُهَا إِلَى بَعْضٍ ».

It was narrated from Abu Hurairah that the Prophet (s.a.w) said: "The Fire and Paradise disputed. The Fire said: 'I have been favored with the arrogant and proud.' Paradise said: 'What is the matter with me, that no one will enter me except the weak, humble and downtrodden?' Allah, Glorified and Exalted is He, said to Paradise: 'You are My mercy, by which I will show mercy to whomsoever I will of My slaves.' And He said to the Fire: 'You are My punishment, with which I will punish whomsoever I will of My slaves. And each of you will be full.' As for the Fire, it will not be full until He puts His Foot on it and it says: 'Enough, enough.' Then it will be full, and all its parts will be integrated together."