It wasnarrated that Ibn 'Abbas said:
"The Messenger of Allah (ﷺ)said: 'The niche-grave is for us and the ditch-grave is forothers." (RU)
English reference (RU): Vol. 1, Book 6, Hadith 1554 (RU)
Arabic reference (RU): Book 6, Hadith 1621 (RU)