The virtue of the area between the prophet's grave and his Minbar, and the virtue of the spot where his minbar is Sahih Muslim 1391
Arabic hadith text
حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، وَمُحَمَّدُ بْنُ الْمُثَنَّى، قَالاَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ عُبَيْدِ، اللَّهِ ح وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ خُبَيْبِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ حَفْصِ، بْنِ عَاصِمٍ عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ "مَا بَيْنَ بَيْتِي وَمِنْبَرِي رَوْضَةٌ مِنْ رِيَاضِ الْجَنَّةِ وَمِنْبَرِي عَلَى حَوْضِي "
Translation
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying
That which exists between my house and my pulpit is a garden from the gardens of Paradise, and my pulpit is upon my cistern.