Sa'd bin Ibrahim narrates from his father that food was brought to Abd al-Rahman bin Awf (may Allah be pleased with him) while he was fasting, and he said: Mus'ab bin Umayr (may Allah be pleased with him) was martyred, and he was better than me, and he was shrouded in a sheet such that if his head was covered with it, his feet were left bare, and if his feet were covered, his head was left bare. I think he also said: Hamzah (may Allah be pleased with him) was martyred, and he too was better than me. Then the world was spread out for us, or he said: We were given of the world what we were given, and we began to fear that our good deeds had been hastened for us. And he began to weep, until he left the food.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6683