Muhammad bin Ka'b narrates that Sayyiduna Ibn Mas'ud (may Allah be pleased with him) was coming along in a small caravan when, on the road, he passed by the funeral of Abu Dharr (may Allah be pleased with him). He and his companions dismounted (from their mounts) and buried him. Abu Dharr (may Allah be pleased with him) had entered Egypt and built a house there.
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1608