"The Prophet (ﷺ) distributed the sacrificial animals and I was left with a Jadha', so I asked the Prophet (ﷺ) about it and he said: 'Sacrifice it for yourself.'" (Another chain) with this Hadith.
Jami` at-Tirmidhi Book 19, Hadith 11
← Previous Hadith That the Messenger of Allah (ﷺ) gave him sheep to distribute among his Companions as a sacrifice. "There remained a young male kid or a young billy goat, so I mentioned that to the Messenger of Allah (ﷺ) and he said: 'Sacrifice it for yourself.'" Waki' said: "The Jadha' among sheep is seven or six months."

Jami` at-Tirmidhi Book 19, Hadith 10 Next Hadith → "We were with the Messenger of Allah (ﷺ) on a journey when the (Day of) Adha came, so we shared seven for a cow and ten for a camel."

Jami` at-Tirmidhi Book 19, Hadith 12