I shall be present there (at the Cistern) before you. I shall be your witness and, by Allah, I perceive as if I am seeing with my own eyes my Cistern at this very state and I have been given the keys of the treasures of the earth or the keys of the earth and, by Allah, I am not afraid concerning you that you would associate anything (with Allah after me), but I am afraid that you would be vying with one another (for the possession of) the treasures of the earth. (Using translation from Muslim 2296a)
أَنَّ رَسُولَ اللهِ ﷺ خَرَجَ يَوْمًا فَصَلَّى عَلَى أَهْلِ أُحُدٍ صَلَاتَهُ عَلَى الْمَيِّتِ ثُمَّ خَرَجَ إِلَى الْمِنْبَرِفَقَالَ إِنِّي فَرَطٌ لَكُمْ وَأَنَا شَهِيدٌ عَلَيْكُمْ وَإِنِّي وَاللهِ لَأَنْظُرُ إِلَى حَوْضِي الْآنَ وَإِنِّي قَدْ أُعْطِيتُ مَفَاتِيحَ خَزَائِنِ الْأَرْضِ وَإِنِّي وَاللهِ مَا أَخَافُ عَلَيْكُمْ أَنْ تُشْرِكُوا بَعْدِي وَلَكِنِّي أَخَافُ عَلَيْكُمْ أَنْ تَنَافَسُوا فِيهَا