حَدَّثَنَا سَعِيدُ بْنُ عَمْرٍو الأَشْعَثِيُّ، وَسُوَيْدُ بْنُ سَعِيدٍ، - وَاللَّفْظُ لِسَعِيدٍ - أَخْبَرَنَا سُفْيَانُ، عَنْ عَمْرٍو، سَمِعَ جَابِرًا، يَقُولُ قَالَ رَجُلٌ أَيْنَ أَنَا يَا، رَسُولَ اللَّهِ إِنْ قُتِلْتُ قَالَ ‏"‏ فِي الْجَنَّةِ ‏"‏ ‏.‏ فَأَلْقَى تَمَرَاتٍ كُنَّ فِي يَدِهِ ثُمَّ قَاتَلَ حَتَّى قُتِلَ ‏.‏ وَفِي حَدِيثِ سُوَيْدٍ قَالَ رَجُلٌ لِلنَّبِيِّ صلى الله عليه وسلم يَوْمَ أُحُدٍ ‏.‏
Translation
It has been reported on the authority of Bara! ' who stated

A man from Banu Nabit (one of the Ansar tribes) came to the Prophet (ﷺ) and said: I testify that there is no god except Allah and that thou art His bondman and Messenger. Then he went forward and fought until he was killed. The Prophet (ﷺ) said: He has done a little but shall be given a great reward.