Ibrahim bin 'Abdur-Rahman bin 'Auf reported:
Food was brought to 'Abdur-Rahman bin 'Auf (May Allah be pleased with him) when he was observing Saum (fast) and he said: "Mus'ab bin 'Umair (May Allah be pleased with him) was martyred and he was better than me, but only one sheet was available to shroud him. It was so small that when his head was covered; his feet remained uncovered and if his feet were covered, his head remained uncovered. Then the bounties of this world have been bestowed upon us generously. I am afraid that the reward of our good deeds have been awarded to us in this world." On this he began to sob and left the food untouched.[Al- Bukhari].
Arabic/English book reference: Book 1, Hadith 454