Sahih al-Bukhari — Representation, Authorization, Business by Proxy — Hadith No: 2300
Translation
Narrated `Uqba bin Amir:that the Prophet (ﷺ) had given him sheep to distribute among his companions and a male kid was left (after the distribution). When he informed the Prophet (ﷺ) of it, he said (to him), "Offer it as a sacrifice on your behalf