Arabic (Original)
و قَالَ أَحْمَد حَدَّثَنَا أَبُو النَّضْرِ حَدَّثَنَا شَرِيكٌ عَنْ أَبِي إِسْحَاقَ عَنِ الْبَهِيِّ عَنِ ابْنِ عُمَرَ قَالَ كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُصَلِّي عَلَى الْخُمْرَةِ.
English Translation
And Ahmad said: Abu al-Nadr told us, Sharik told us, from Abu Ishaq, from al-Bahi, from Ibn Umar, who said: The Prophet, peace and blessings be upon him, used to pray on the small prayer mat.