Arabic (Original)
أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا أَبُو زُرْعَةَ عَبْدُ الرَّحْمَنِ بْنُ عَمْرٍو الدِّمَشْقِيُّ وَسَعِيدُ بْنُ عُثْمَانَ التَّنُوخِيُّ فَرَّقَهُمَا فِي مَوْضِعَيْنِ قَالَا ثنا أَحْمَدُ بْنُ خَالِدٍ الْوَهْبِيُّ ثنا مُحَمَّدُ بْنُ إِسْحَاقَ عَنْ مَكْحُولٍ عَنْ كُرَيْبٍ مَوْلَى ابْنِ عَبَّاسٍ عَنِ ابْنِ عَبَّاسٍ قَالَ جَلَسْتُ إِلَى عُمَرَ بْنِ الْخَطَّابِ ؓ فَقَالَ يَا ابْنَ عَبَّاسٍ هَلْ سَمِعْتَ مِنَ النَّبِيِّ ﷺ فِي الرَّجُلِ إِذَا نَسِيَ صَلَاتَهَ فَلَمْ يَدْرِ أَزَادَ أَمْ نَقَصَ مَا أَمَرَ بِهِ فِيهِ؟ قُلْتُ وَمَا سَمِعْتَ أَنْتَ يَا أَمِيرَ الْمُؤْمِنِينِ مِنْ رَسُولِ اللهِ ﷺ شَيْئًا فِي ذَلِكَ؟ قَالَ لَا وَاللهِ مَا سَمِعْتُ مِنْهُ فِيهِ شَيْئًا وَلَا سَأَلْتُ عَنْهُ إِذْ جَاءَ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ فَقَالَ فِيمَا أَنْتُمَا؟ فَأَخْبَرَهُ عُمَرُ فَقَالَ سَأَلْتُ هَذَا الْفَتَى عَنْ كَذَا وَكَذَا فَلَمْ أَجِدْ عِنْدَهُ عِلْمًا قَالَ عَبْدُ الرَّحْمَنِ لَكِنْ عِنْدِي لَقَدْ سَمِعْتُ ذَلِكَ مِنَ النَّبِيِّ ﷺ فَقَالَ عُمَرُ فَأَنْتَ عِنْدَنَا الْعَدْلُ الرِّضَا فَمَاذَا سَمِعْتَ؟ قَالَ سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ إِذَا شَكَّ أَحَدُكُمْ فِي صَلَاتِهِ فَشَكَّ فِي الْوَاحِدَةِ وَالِثْنَتَيْنِ فَلْيَجْعَلْهُمَا وَاحِدَةً وَإِذَا شَكَّ فِي الِاثْنَتَيْنِ وَالثَّلَاثِ فَلْيَجْعَلْهَا اثْنَتَيْنِ وَإِذَا شَكَّ فِي الثَّلَاثِ وَالْأَرْبَعِ فَلْيَجْعَلْهَا ثَلَاثًا حَتَّى يَكُونَ الْوَهْمُ فِي الزِّيَادَةِ يَسْجُدُ سَجْدَتَيْنِ قَبْلَ أَنْ يُسَلِّمَ ثُمَّ يُسَلِّمُ وَبِمَعْنَاهُ
English Translation
Ibn Abbas said: I sat with Umar ibn al-Khattab (may Allah be pleased with him), and he said: O Ibn Abbas, have you heard from the Prophet (peace be upon him) about a man who forgets in his prayer and does not know whether he added or subtracted, what he commanded regarding it? I said: And have you, O Commander of the Faithful, heard anything from the Messenger of Allah about that? He said: No, by Allah, I neither heard anything from him nor asked him about it. Then Abd al-Rahman ibn Awf came and said: What are you discussing? Umar informed him and said: I asked this young man about such and such but found no knowledge with him. Abd al-Rahman said: But I have knowledge. I heard that from the Prophet (peace be upon him). Umar said: You are the trustworthy and accepted one among us. What did you hear? He said: I heard the Prophet (peace be upon him) say: If one of you has doubt in his prayer and doubts between one and two, let him consider it one. If he doubts between two and three, let him consider it two. If he doubts between three and four, let him consider it three - until the doubt is about the addition. Then let him prostrate two prostrations before giving the salam, then give the salam.