Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
muslim:2305bQutaybah b. Saʿīd And ʾAbū Bakr b. Abū Shaybah > Ḥātim b. Ismāʿīl > al-Muhājir b. Mismār > ʿĀmir b. Saʿd b. Abū Waqqāṣ > Katabt > Jābir b. Samurah Maʿ Ghulāmī Nāfiʿ

I wrote (a letter) to Jabir b. Samura (and it was sent) through my servant Nafi' asking him to inform me about something (pertaining to the Haud Kauthar). He wrote to me: I heard him (the Holy Prophet) say: I shall be there ahead of you at the Haud Kauthar.  

مسلم:٢٣٠٥bحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ قَالاَ حَدَّثَنَا حَاتِمُ بْنُ إِسْمَاعِيلَ عَنِ الْمُهَاجِرِ بْنِ مِسْمَارٍ عَنْ عَامِرِ بْنِ سَعْدِ بْنِ أَبِي وَقَّاصٍ قَالَ كَتَبْتُ إِلَى جَابِرِ بْنِ سَمُرَةَ مَعَ غُلاَمِي نَافِعٍ

أَخْبِرْنِي بِشَىْءٍ سَمِعْتَهُ مِنْ رَسُولِ اللَّهِ ﷺ قَالَ فَكَتَبَ إِلَىَّ إِنِّي سَمِعْتُهُ يَقُولُ أَنَا الْفَرَطُ عَلَى الْحَوْضِ