(1) باب وَقْتِهَا
Jundab al-Bajali reported:
I saw Allah's Messenger (ﷺ) observing ('Id) prayer on the Day of Sacrifice (10th of Dhu'l-Hijja) and then delivering a sermon and he said: He who sacrificed the (animal) before offering ('Id) prayer, he should offer again in its stead, and he who did not sacrifice the animal should slaughter it by reciting the name of Allah.
Reference: Sahih Muslim 1960 d
In-book reference: Book 35, Hadith 4
USC-MSA web (English) reference(deprecated numbering scheme): Book 22, Hadith 4821