Saʿid bin Jubair said that Ibn ʿAbbas said about Al-Kauthar. "That is the good which Allah has bestowed upon His Apostle." I said to Saʿid bin Jubair. "But the people claim that it is a river in Paradise." Saʿid said, "The river in Paradise is part of the good which Allah has bestowed on His Apostle."
أَنَّهُ قَالَ فِي الْكَوْثَرِ هُوَ الْخَيْرُ الَّذِي أَعْطَاهُ اللَّهُ إِيَّاهُ قَالَ أَبُو بِشْرٍ قُلْتُ لِسَعِيدِ بْنِ جُبَيْرٍ فَإِنَّ النَّاسَ يَزْعُمُونَ أَنَّهُ نَهَرٌ فِي الْجَنَّةِ فَقَالَ سَعِيدٌ النَّهَرُ الَّذِي فِي الْجَنَّةِ مِنَ الْخَيْرِ الَّذِي أَعْطَاهُ اللَّهُ إِيَّاهُ