Musnad Ahmad 1333
An-Nu`man bin Sa`d narrated:
We were sitting with ‘Ali (رضي الله عنه) and he recited this verse: “The Day We shall gather the Muttaqoon (the pious) unto the Most Gracious (Allah), like a delegation (presented before a king for honour)” [Maryam 19:85] He said: No, by Allah they will not be gathered on their feet, the delegation will never be gathered on their feet. Rather (they will be gathered) on she-camels the like of which mankind has never seen, on which are sadales of gold. They will ride them until they knock at the gates of Paradise.
حَدَّثَنَا عَبْد اللَّهِ، حَدَّثَنِي سُوَيْدُ بْنُ سَعِيدٍ، أَخْبَرَنَا عَلِيُّ بْنُ مُسْهِرٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ إِسْحَاقَ، حَدَّثَنَا النُّعْمَانُ بْنُ سَعْدٍ، قَالَ كُنَّا جُلُوسًا عِنْدَ عَلِيٍّ رَضِيَ اللَّهُ عَنْهُ فَقَرَأَ هَذِهِ الْآيَةَ ‏{‏يَوْمَ نَحْشُرُ الْمُتَّقِينَ إِلَى الرَّحْمَنِ وَفْدًا‏}‏ قَالَ لَا وَاللَّهِ مَا عَلَى أَرْجُلِهِمْ يُحْشَرُونَ وَلَا يُحْشَرُ الْوَفْدُ عَلَى أَرْجُلِهِمْ وَلَكِنْ عَلَى نُوقٍ لَمْ تَرَ الْخَلَائِقُ مِثْلَهَا عَلَيْهَا رَحَائِلُ مِنْ ذَهَبٍ فَيَرْكَبُونَ عَلَيْهَا حَتَّى يَضْرِبُوا أَبْوَابَ الْجَنَّةِ‏.‏