Riyad as-Salihin, Book 1, Hadith 454 (In-Book) ⓘ

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].

وعن إبراهيم بن عبد الرحمن بن عوف أن عبد الرحمن بن عوف، رضي الله عنه ، أتي بطعام وكان صائما، فقال‏:‏ قتل مصعب بن عمير رضي الله عنه، وهو خير مني، فلم يوجد له ما يكفن به إلا بردة إن غطى بها رأسه بدت رجلاه، وإن غطى بها رجلاه بدا رأسه، ثم بسط لنا من الدنيا ما بسط -أو قال‏:‏ أعطينا من الدنيا ما أعطينا -قد خشينا أن تكون حسناتنا عجلت لنا‏.‏ ثم جعل يبكي حتى ترك الطعام‏.‏ ‏(‏‏(‏رواه البخاري‏)‏‏)‏‏.‏