Arabic (Original)
حَدَّثَنَا عَلِيُّ بْنُ إِسْحَاقَ أَخْبَرَنَا عَبْدُ اللَّهِ يَعْنِي ابْنَ مُبَارَكٍ أَخْبَرَنَا يَحْيَى بْنُ أَيُّوبَ عَنْ عَبْدِ اللَّهِ بْنِ قُرَيْطٍ أَنَّ عَطَاءَ بْنَ يَسَارٍ حَدَّثَهُ أَنَّهُ سَمِعَ أَبَا سَعِيدٍ الْخُدْرِيَّ يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ مَنْ صَامَ رَمَضَانَ وَعَرَفَ حُدُودَهُ وَتَحَفَّظَ مِمَّا كَانَ يَنْبَغِي لَهُ أَنْ يَتَحَفَّظَ فِيهِ كَفَّرَ مَا كَانَ قَبْلَهُ.
English Translation
Ali ibn Ishaq told us: Abdullah - meaning Ibn al-Mubarak - informed us: Yahya ibn Ayyub informed us, from Abdullah ibn Qurayt, that Ata' ibn Yasar told him that he heard Abu Sa'id al-Khudri saying: I heard the Messenger of Allah, peace and blessings be upon him, say, "Whoever fasts Ramadan, knowing its limits and guarding what he ought to guard in it, it will atone for what came before it."