" مَنْ تَبِعَ جَنَازَةً حَتَّى يُفْرَغَ مِنْهَا فَلَهُ قِيرَاطَانِ فَإِنْ رَجَعَ قَبْلَ أَنْ يُفْرَغَ مِنْهَا فَلَهُ قِيرَاطٌ "
It was narrated that 'Abdullah bin Al-Mughaffal said: "The Messenger of Allah said: 'Whoever follows a Janazah until it is finished, he will have two Qirats, and whoever goes back before it is finished, he will have one Qirat."