Sunan an-Nasai Book 21, Hadith 1903

أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا يَحْيَى، عَنِ الأَعْمَشِ، ح وَأَخْبَرَنَا إِسْمَاعِيلُ بْنُ مَسْعُودٍ، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ الْقَطَّانُ، قَالَ سَمِعْتُ الأَعْمَشَ، قَالَ سَمِعْتُ شَقِيقًا، قَالَ حَدَّثَنَا خَبَّابٌ، قَالَ هَاجَرْنَا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم نَبْتَغِي وَجْهَ اللَّهِ تَعَالَى فَوَجَبَ أَجْرُنَا عَلَى اللَّهِ فَمِنَّا مَنْ مَاتَ لَمْ يَأْكُلْ مِنْ أَجْرِهِ شَيْئًا مِنْهُمْ مُصْعَبُ بْنُ عُمَيْرٍ قُتِلَ يَوْمَ أُحُدٍ فَلَمْ نَجِدْ شَيْئًا نُكَفِّنُهُ فِيهِ إِلاَّ نَمِرَةً كُنَّا إِذَا غَطَّيْنَا رَأْسَهُ خَرَجَتْ رِجْلاَهُ وَإِذَا غَطَّيْنَا بِهَا رِجْلَيْهِ خَرَجَتْ رَأْسُهُ فَأَمَرَنَا رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ نُغَطِّيَ بِهَا رَأْسَهُ وَنَجْعَلَ عَلَى رِجْلَيْهِ إِذْخِرًا وَمِنَّا مَنْ أَيْنَعَتْ لَهُ ثَمَرَتُهُ فَهُوَ يَهْدِبُهَا ‏.‏ وَاللَّفْظُ لإِسْمَاعِيلَ ‏.‏

Khabbab said:"We emigrated with the Messenger of Allah, seeking the Face of Allah, the Most High, so our reward became due from Allah. Some of us died without enjoying anything of his reward (in this world) among them is Mus'ab bin Umair. He was matyred on the day of Uhud and we could not find anything to shroud him in except a Namirah; if we covered his head with it, his feet were uncovered, and if we covered his feet with it, his head became uncovered. The Messenger of Allah told us to cover his head with it and to put Idhkhir over his feet. And for some of us, the fruits of our labor have ripened and we are gathering them." This is the wording of Isma'il