Narrated Anas:

that the Prophet ﷺ said: "I entered Paradise and it was as if I was in a palace of gold. So I said: 'Whose palace is this?' They said: 'A youth's, from the Quraish.' So I thought that I was him. I said: 'And who is he?' They said: "'Umar bin Al-Khattab."

حَدَّثَنَا عَلِيُّ بْنُ حُجْرٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ ﷺ قَالَ " دَخَلْتُ الْجَنَّةَ فَإِذَا أَنَا بِقَصْرٍ مِنْ ذَهَبٍ فَقُلْتُ لِمَنْ هَذَا الْقَصْرُ قَالُوا لِشَابٍّ مِنْ قُرَيْشٍ فَظَنَنْتُ أَنِّي أَنَا هُوَ فَقُلْتُ وَمَنْ هُوَ فَقَالُوا عُمَرُ بْنُ الْخَطَّابِ " . قَالَ هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .