صحيح البخاري Sahih Bukhari كتاب السهو The Book of As-Sahw (Forgetting)
بَابُ مَنْ يُكَبِّرُ فِي سَجْدَتَيِ السَّهْوِ:

(5) Chapter. To Say Takbir in the prostrations of Sahw.

2 hadith
Hadith 1229
حَدَّثَنَا حَفْصُ بْنُ عُمَرَ ، حَدَّثَنَا يَزِيدُ بْنُ إِبْرَاهِيمَ ، عَنْ مُحَمَّدٍ ، عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ , قَالَ : " صَلَّى النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِحْدَى صَلَاتَيِ الْعَشِيِّ ، قَالَ مُحَمَّدٌ : وَأَكْثَرُ ظَنِّي الْعَصْرَ رَكْعَتَيْنِ ، ثُمَّ سَلَّمَ ، ثُمَّ قَامَ إِلَى خَشَبَةٍ فِي مُقَدَّمِ الْمَسْجِدِ فَوَضَعَ يَدَهُ عَلَيْهَا , وَفِيهِمْ أَبُو بَكْرٍ وَ عُمَرُ رَضِيَ اللَّهُ عَنْهُمَا فَهَابَا أَنْ يُكَلِّمَاهُ وَخَرَجَ سَرَعَانُ النَّاسِ ، فَقَالُوا : أَقَصُرَتِ الصَّلَاةُ , وَرَجُلٌ يَدْعُوهُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ذُو الْيَدَيْنِ ، فَقَالَ : أَنَسِيتَ أَمْ قَصُرَتْ ؟ فَقَالَ : لَمْ أَنْسَ وَلَمْ تُقْصَرْ ، قَالَ : بَلَى قَدْ نَسِيتَ ، فَصَلَّى رَكْعَتَيْنِ ، ثُمَّ سَلَّمَ ، ثُمَّ كَبَّرَ فَسَجَدَ مِثْلَ سُجُودِهِ أَوْ أَطْوَلَ ، ثُمَّ رَفَعَ رَأْسَهُ فَكَبَّرَ ، ثُمَّ وَضَعَ رَأْسَهُ فَكَبَّرَ فَسَجَدَ مِثْلَ سُجُودِهِ أَوْ أَطْوَلَ ، ثُمَّ رَفَعَ رَأْسَهُ وَكَبَّرَ " .
Narrated Abu Huraira: The Prophet offered one of the evening prayers (the sub-narrator Muhammad said, "I think that it was most probably the `Asr prayer") and he finished it after offering two rak`at only. He then stood near a price of wood in front of the Mosque and put his hand over it. Abu Bakr and `Umar were amongst those who were present, but they dared not talk to him about that (because of excessive respect for him), and those who were in a hurry went out. They said, "Has the prayer been reduced?" A man who was called Dhul-Yadain by the Prophet said (to the Prophet), "Has the prayer been reduced or have you forgotten?" He said, "Neither have I forgotten, nor has the prayer been reduced." He said, "Certainly you have forgotten." So the Prophet offered two more rak`at and performed Taslim and then said Takbir and performed a prostration of Sahu like his ordinary prostration or a bit longer and then raised his head and said Takbir and then put his head down and performed a prostration like his ordinary prostration or a bit longer, and then raised his head and said Takbir.
Hadith Reference Sahih Bukhari / The Book of As-Sahw (Forgetting) / Hadith: 1229
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 1230
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ ، حَدَّثَنَا لَيْثٌ ، عَنِ ابْنِ شِهَابٍ ، عَنْ الْأَعْرَجِ ، عَنْ عَبْدِ اللَّهِ ابْنِ بُحَيْنَةَ الْأَسْدِيِّ حَلِيفِ بَنِي عَبْدِ الْمُطَّلِبِ ، " أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَامَ فِي صَلَاةِ الظُّهْرِ وَعَلَيْهِ جُلُوسٌ ، فَلَمَّا أَتَمَّ صَلَاتَهُ سَجَدَ سَجْدَتَيْنِ فَكَبَّرَ فِي كُلِّ سَجْدَةٍ وَهُوَ جَالِسٌ قَبْلَ أَنْ يُسَلِّمَ وَسَجَدَهُمَا النَّاسُ مَعَهُ مَكَانَ مَا نَسِيَ مِنَ الْجُلُوسِ " تَابَعَهُ ابْنُ جُرَيْجٍ ، عَنِ ابْنِ شِهَابٍ فِي التَّكْبِيرِ .
Narrated `Abdullah bin Buhaina Al-Asdi: (the ally of Bani `Abdul Muttalib) Allah's Apostle stood up for the Zuhr prayer and he should have sat (after the second rak`a but he stood up for the third rak`a without sitting for Tashah-hud) and when he finished the prayer he performed two prostrations and said Takbir on each prostration while sitting, before ending (the prayer) with Taslim; and the people too performed the two prostrations with him instead of the sitting he forgot.
Hadith Reference Sahih Bukhari / The Book of As-Sahw (Forgetting) / Hadith: 1230
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة