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كتاب المغازى
64  
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
(28)
Chapter: The Ghazwa of Ar-Raji’, Ri’l, Dhakwan and Bi’r Ma’una and the narration about Khubaib and his companions
(28)
باب غَزْوَةُ الرَّجِيعِ وَرِعْلٍ وَذَكْوَانَ وَبِئْرِ مَعُونَةَ
Sahih al-Bukhari 4087

Narrated Jabir:

The person who killed Khubaib was Abu Sarua (i.e. `Uqba bin Al-Harith).

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، سَمِعَ جَابِرًا، يَقُولُ الَّذِي قَتَلَ خُبَيْبًا هُوَ أَبُو سِرْوَعَةَ‏.‏
Reference : Sahih al-Bukhari 4087
In-book reference : Book 64, Hadith 131
USC-MSA web (English) reference : Vol. 5, Book 59, Hadith 413
  (deprecated numbering scheme)