Sunan an-Nasa'i, Hadith 696 ⓘ
It was narrated from Umm Salamah that the Prophet said: "The columns of this Minbar of mine will be in Paradise."
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَمَّارٍ الدُّهْنِيِّ، عَنْ أَبِي سَلَمَةَ، عَنْ أُمِّ سَلَمَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " إِنَّ قَوَائِمَ مِنْبَرِي هَذَا رَوَاتِبُ فِي الْجَنَّةِ " .
also referenced under: Book 8, Hadith 9 (In-Book) & Volume 1, Book 8, Hadith 697 (DarusSalam)