Sahih al-Bukhari
Oneness, Uniqueness of Allah (Tawheed) — Hadith #7425
أَرْسَلَ إِلَىَّ أَبُو بَكْرٍ فَتَتَبَّعْتُ الْقُرْآنَ حَتَّى وَجَدْتُ آخِرَ سُورَةِ التَّوْبَةِ مَعَ أَبِي خُزَيْمَةَ الأَنْصَارِيِّ لَمْ أَجِدْهَا مَعَ أَحَدٍ غَيْرِهِ {لَقَدْ جَاءَكُمْ رَسُولٌ مِنْ أَنْفُسِكُمْ} حَتَّى خَاتِمَةِ بَرَاءَةٌ.
The chain (isnad) appears to be missing from this record. Under review.
Abu Bakr sent for me, so I collected the Qur'an till I found the last part of Surat-at-Tauba with Abi Khuza`ima Al-Ansari and did not find it with anybody else. (The Verses are): -- 'Verily, there has come to you an Apostle (Muhammad) from amongst yourselves..(till the end of Surat Bara'a) (i.e., at- Tauba).' (9.128-129)
Yunus also narrated as above.
أَرْسَلَ إِلَىَّ أَبُو بَكْرٍ فَتَتَبَّعْتُ الْقُرْآنَ حَتَّى وَجَدْتُ آخِرَ سُورَةِ التَّوْبَةِ مَعَ أَبِي خُزَيْمَةَ الأَنْصَارِيِّ لَمْ أَجِدْهَا مَعَ أَحَدٍ غَيْرِهِ {لَقَدْ جَاءَكُمْ رَسُولٌ مِنْ أَنْفُسِكُمْ} حَتَّى خَاتِمَةِ بَرَاءَةٌ.
See also hadith 7424.