Hadith 6:839
'Abd al-A'la narrated to us, from Ma'mar, from al-Zuhri, from Sa'id, that the Messenger of Allah, may Allah bless him and grant him peace, had a *lahd* (a niche in the side of the grave) made for him.
حدثنا عبد الأعلى عن معمر عن الزهري عن سعيد أن رسول الله صلى الله عليه وسلم لحدوا له