An-Nadr bin Shaiban narrated that he met Abu Salamah bin 'Abdur-Rahman and said to him:

"Tell me of the best thing you heard about the month of Ramadan." Abu Salamah said: "Abdur-Rahman bin 'Awf told me that the Messenger of Allah mentioned Ramadan and said that it is superior to other months, and he said: 'Whoever spends the nights of Ramadan in prayer (Qiyam) out of faith and in the hope of reward, he will emerge from his sins as on the day his mother bore him."'
Abu 'Abdur-Rahman (An-Nasai) said: This is a mistake, and what is correct is "Abu Salamah, from Abu Hurairah."

أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا الْفَضْلُ بْنُ دُكَيْنٍ، قَالَ حَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ، قَالَ حَدَّثَنِي النَّضْرُ بْنُ شَيْبَانَ، أَنَّهُ لَقِيَ أَبَا سَلَمَةَ بْنَ عَبْدِ الرَّحْمَنِ فَقَالَ لَهُ حَدِّثْنِي بِأَفْضَلِ، شَىْءٍ سَمِعْتَهُ يُذْكَرُ، فِي شَهْرِ رَمَضَانَ . فَقَالَ أَبُو سَلَمَةَ حَدَّثَنِي عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ، عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ ذَكَرَ شَهْرَ رَمَضَانَ فَفَضَّلَهُ عَلَى الشُّهُورِ وَقَالَ " مَنْ قَامَ رَمَضَانَ إِيمَانًا وَاحْتِسَابًا خَرَجَ مِنْ ذُنُوبِهِ كَيَوْمِ وَلَدَتْهُ أُمُّهُ " . قَالَ أَبُو عَبْدِ الرَّحْمَنِ هَذَا خَطَأٌ وَالصَّوَابُ أَبُو سَلَمَةَ عَنْ أَبِي هُرَيْرَةَ .