Language:
كتاب فضائل أصحاب النبى صلى الله عليه وسلم
62  
Companions of the Prophet
(23)
Chapter: The merits of Bilal bin Rabah, the freed slave of Abu Bakr رضي الله عنه
(23)
باب مَنَاقِبُ بِلاَلِ بْنِ رَبَاحٍ مَوْلَى أَبِي بَكْرٍ رضى الله عنهما
Sahih al-Bukhari 3754

Narrated Ibn Abi Nu'm:

`Abdullah bin `Umar was asked about a muhrim (a person in the state of pilgrimage). Shu'bah (a subnarrator) said "I think killing flies."

I heard him saying (in reply). "The people of Iraq are asking about flies while they themselves murdered the son of the daughter of Allah's Messenger (ﷺ). The Prophet (ﷺ) said, 'They (i.e. Hasan and Husain) are my two sweet basils in this world.' "

حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي سَلَمَةَ، عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ، أَخْبَرَنَا جَابِرُ بْنُ عَبْدِ اللَّهِ ـ رضى الله عنهما ـ قَالَ كَانَ عُمَرُ يَقُولُ أَبُو بَكْرٍ سَيِّدُنَا، وَأَعْتَقَ سَيِّدَنَا‏.‏ يَعْنِي بِلاَلاً‏.‏
Reference : Sahih al-Bukhari 3754
In-book reference : Book 62, Hadith 0
USC-MSA web (English) reference : Vol. 5, Book 57, Hadith 96
  (deprecated numbering scheme)