Sunan an-Nasa'i, Book 21, Hadith 191 (In-Book) ⓘ
It was narrated that Sa'd said: "Make a niche for me in the side of the grave and set up (bricks) over me as was done for the Messenger of Allah."
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ جَعْفَرٍ، عَنْ إِسْمَاعِيلَ بْنِ مُحَمَّدِ بْنِ سَعْدٍ، عَنْ أَبِيهِ، عَنْ سَعْدٍ، قَالَ : الْحَدُوا لِي لَحْدًا، وَانْصِبُوا عَلَىَّ نَصْبًا كَمَا فُعِلَ بِرَسُولِ اللَّهِ صلى الله عليه وسلم .
also referenced under: Hadith 2007 (Reference) & Volume 3, Book 21, Hadith 2009 (DarusSalam)