If anyone attends the funeral and prays over (the dead), he will get the reward of one qirat, and if anyone attends the funeral until the completion (of the burial), he will get the reward of two qirats, the smaller of them being equivalent of Uhud, or one of them being equivalent to Uhud.  

مَنْ تَبِعَ جَنَازَةً فَصَلَّى عَلَيْهَا فَلَهُ قِيرَاطٌ وَمَنْ تَبِعَهَا حَتَّى يُفْرَغَ مِنْهَا فَلَهُ قِيرَاطَانِ أَصْغَرُهُمَا مِثْلُ أُحُدٍ أَوْ أَحَدُهُمَا مِثْلُ أُحُدٍ  

[Machine] The Messenger of Allah ﷺ said, "Whoever follows a funeral procession until the prayer is performed upon it, will receive one Qirat, and whoever waits until the deceased is buried, will receive two Qirats."  

قَالَ رَسُولُ اللهِ ﷺ مَنْ تَبِعَ جِنَازَةً حَتَّى يُصَلِّيَ عَلَيْهَا فَلَهُ قِيرَاطٌ وَمَنْ انْتَظَرَهَا حَتَّى يُفْرَغَ مِنْهَا فَلَهُ قِيرَاطَانِ  

[Machine] Narrated by the Prophet ﷺ: "Whoever follows a funeral procession until the funeral prayer is offered and the burial is done, will receive two Qirats (of reward). And whoever follows it until the burial is done will receive one Qirat. And by the One in whose hand is the soul of Muhammad, it is heavier in his scale than Mount Uhud."  

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ تَبِعَ جَنَازَةً حَتَّى يُصَلَّى عَلَيْهَا وَيُفْرَغَ مِنْهَا فَلَهُ قِيرَاطَانِ وَمَنْ تَبِعَهَا حَتَّى يُصَلَّى عَلَيْهَا فَلَهُ قِيرَاطٌ وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ لَهُوَ أَثْقَلُ فِي مِيزَانِهِ مِنْ أُحُدٍ