Sunabih Al-Ahmasi reported: The Messenger of Allah, peace and blessings be upon him, said, “No doubt I will reach the Cistern (al-hawd) ahead of you and I will be proud of your great numbers before the nations, so do not fight each other after me.”

Source: Sunan Ibn Majah 3944

Grade: Sahih (authentic) according to Al-Albani

عَنْ الصُّنَابِحِ الْأَحْمَسِيِّ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَلَا إِنِّي فَرَطُكُمْ عَلَى الْحَوْضِ وَإِنِّي مُكَاثِرٌ بِكُمْ الْأُمَمَ فَلَا تَقَتِّلُنَّ بَعْدِي

3944 سنن ابن ماجه كتاب الفتن باب لا ترجعوا بعدي كفارا يضرب بعضكم رقاب بعض

المحدث الألباني خلاصة حكم المحدث صحيح

The author of page commented
' the "Fountain" meaning the Prophet's (SAW) cistern he will have in the Hereafter from which people will drink. Allah knows best.'