(13) باب السُّؤَالِ بِأَسْمَاءِ اللَّهِ تَعَالَى، وَالاِسْتِعَاذَةِ بِهَا
Narrated Jundab:
That he witnessed the Prophet (ﷺ) on the Day of Nahr. The Prophet (ﷺ) offered prayer and then delivered a sermon saying, "Whoever slaughtered his sacrifice before offering prayer, should slaughter another animal in place of the first; and whoever has not yet slaughtered any, should slaughter a sacrifice and mention Allah's Name while doing so."
Reference: Sahih al-Bukhari 7400
In-book reference: Book 97, Hadith 29
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 93, Hadith 497