Arabic Text
حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ . نَحْوَهُ غَيْرَ أَنَّهُ قَالَ " فَلَهُ عَشْرُ أَمْثَالِهَا أَوْ أَزِيدُ " .
English Translation
A hadith like this has been transmitted on the authority of A'mash with the same chain of transmitters and he (further) said: There is for him ten like that (the good he performed) or more than that.
This hadith is from Sahih Muslim, one of the most rigorously authenticated collections in Islamic scholarship. No editorial opinion is added.