Language:
كتاب الأضاحي
73  
Al-Adha Festival Sacrifice (Adaahi)
(2)
Chapter: The distribution of the animals among the people
(2)
باب قِسْمَةِ الإِمَامِ الأَضَاحِيَّ بَيْنَ النَّاسِ
Sahih al-Bukhari 5547

Narrated `Uqba bin 'Amir Al-Juhani:

that the Prophet (ﷺ) distributed among his companions some animals for sacrifice (to be slaughtered on `Id-al-Adha). `Uqba's share was a Jadha'a (a six month old goat). `Uqba said, "O Allah's Messenger (ﷺ)! I get in my share of Jadha'a (a six month old ram)." The Prophet (ﷺ) said, "Slaughter it as a sacrifice."

حَدَّثَنَا مُعَاذُ بْنُ فَضَالَةَ، حَدَّثَنَا هِشَامٌ، عَنْ يَحْيَى، عَنْ بَعْجَةَ الْجُهَنِيِّ، عَنْ عُقْبَةَ بْنِ عَامِرٍ الْجُهَنِيِّ، قَالَ قَسَمَ النَّبِيُّ صلى الله عليه وسلم بَيْنَ أَصْحَابِهِ ضَحَايَا، فَصَارَتْ لِعُقْبَةَ جَذَعَةٌ‏.‏ فَقُلْتُ يَا رَسُولَ اللَّهِ صَارَتْ جَذَعَةٌ‏.‏ قَالَ ‏ "‏ ضَحِّ بِهَا ‏"‏‏.‏
Reference : Sahih al-Bukhari 5547
In-book reference : Book 73, Hadith 3
USC-MSA web (English) reference : Vol. 7, Book 68, Hadith 455
  (deprecated numbering scheme)