Hadith on Kawthar: The Prophet is given the Abundance in Paradise

Anas ibn Malik reported: The Messenger of Allah, peace and blessings be upon him, said, “A chapter was just revealed to me.” The Prophet recited, “In the name of Allah, the Gracious, the Merciful. Verily, We have given you the Abundance,” (108:1) until he finished it. The Prophet said, “Do you know what is the Abundance?” They said, “Allah and His Messenger know best.” The Prophet said, “Verily, it is a river that my Lord Almighty has promised me in Paradise.

Source: Sunan Abī Dāwūd 784

Grade: Hasan (fair) according to Al-Albani

عَنِ  ‌أَنَس بْن مَالِكٍ قَالَ قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ أُنْزِلَتْ عَلَيَّ آنِفًا سُورَةٌ فَقَرَأَ بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ إِنَّا أَعْطَيْنَاكَ الْكَوْثَرَ حَتَّى خَتَمَهَا قَالَ هَلْ تَدْرُونَ مَا الْكَوْثَرُ قَالُوا اللهُ وَرَسُولُهُ أَعْلَمُ قَالَ فَإِنَّهُ نَهَرٌ وَعَدَنِيهِ رَبِّي عَزَّ وَجَلَّ فِي الْجَنَّةِ

784 سنن أبي داود كتاب الصلاة باب من لم ير الجهر ببسم الله الرحمن الرحيم

784 المحدث الألباني خلاصة حكم المحدث حسن في صحيح أبي داود