صحيح البخاري Sahih Bukhari كتاب السهو The Book of As-Sahw (Forgetting)
بَابُ مَا جَاءَ فِي السَّهْوِ إِذَا قَامَ مِنْ رَكْعَتَيِ الْفَرِيضَةِ:

(1) Chapter. What is said regarding the Sahw. If someone gets up (for the third Raka without sitting) after the second Raka of a compulsory Salat (prayer).

2 hadith
Hadith 1224
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ ، أَخْبَرَنَا مَالِكُ بْنُ أَنَسٍ ، عَنِ ابْنِ شِهَابٍ ، عَنْ عَبْدِ الرَّحْمَنِ الْأَعْرَجِ ، عَنْ عَبْدِ اللَّهِ ابْنِ بُحَيْنَةَ رَضِيَ اللَّهُ عَنْهُ , أَنَّهُ قَالَ : " صَلَّى لَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَكْعَتَيْنِ مِنْ بَعْضِ الصَّلَوَاتِ ، ثُمَّ قَامَ فَلَمْ يَجْلِسْ فَقَامَ النَّاسُ مَعَهُ ، فَلَمَّا قَضَى صَلَاتَهُ وَنَظَرْنَا تَسْلِيمَهُ كَبَّرَ قَبْلَ التَّسْلِيمِ ، فَسَجَدَ سَجْدَتَيْنِ وَهُوَ جَالِسٌ ثُمَّ سَلَّمَ " .
Narrated `Abdullah bin Buhaina: Allah's Apostle once led us in a prayer and offered two rak`at and got up (for the third rak`a) without sitting (after the second rak`a). The people also got up with him, and when he was about to finish his prayer, we waited for him to finish the prayer with Taslim but he said Takbir before Taslim and performed two prostrations while sitting and then finished the prayer with Taslim.
Hadith Reference Sahih Bukhari / The Book of As-Sahw (Forgetting) / Hadith: 1224
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 1225
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ ، أَخْبَرَنَا مَالِكٌ ، عَنْ يَحْيَى بْنِ سَعِيدٍ ، عَنْ عَبْدِ الرَّحْمَنِ الْأَعْرَجِ ، عَنْ عَبْدِ اللَّهِ ابْنِ بُحَيْنَةَ رَضِيَ اللَّهُ عَنْهُ , أَنَّهُ قَالَ : " إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَامَ مِنَ اثْنَتَيْنِ مِنَ الظُّهْرِ لَمْ يَجْلِسْ بَيْنَهُمَا ، فَلَمَّا قَضَى صَلَاتَهُ سَجَدَ سَجْدَتَيْنِ ثُمَّ سَلَّمَ بَعْدَ ذَلِكَ " .
Narrated `Abdullah bin Buhaina: Allah's Apostle got up after the second rak`a of the Zuhr prayer without sitting in between (the second and the third rak`at). When he finished the prayer he performed two prostrations (of Sahu) and then finished the prayer with Taslim.
Hadith Reference Sahih Bukhari / The Book of As-Sahw (Forgetting) / Hadith: 1225
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة