Ibrahim bin Abdullah bin Sa'd bin Khaythamah narrates from his father, from his father Sayyiduna Sa'd bin Khaythamah (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) said: "I saw in a dream as if mercy descended upon a place between Banu Salim and Banu Bayadah." The people said: "O Messenger of Allah, shall we move to that place?" He (peace and blessings be upon him) said: "No, but bury (your dead) in it." So they buried their dead in that place.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5397