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
Hadith No. 2007
Sunan an Nasai
Gradings:
Abu Ghuddah:
Sahih
Al-Albani:
Sahih
Zubair Ali Zai:
Isnaad Sahih