Sahih al-Bukhari 7400
Book 97: Oneness, Uniqueness of Allah (Tawheed) · Hadith 29
Hadith text
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
Jundab bataate hain ke unhone Nabi (SAW) ko Nahr (Eid-ul-Adha) ke din dekha. Nabi (SAW) ne namaz padhi aur phir khutba diya, kehte hue, 'Jisne bhi apni qurbaani namaz se pehle zibah ki, use uski jagah doosra jaanwar zibah karna chaahiye; aur jisne abhi tak zibah nahi kiya, use ek qurbaani zibah karni chaahiye aur aisa karte waqt Allah ka naam lena chaahiye.'
Sahih al-Bukhari 7400 · Book 97, Hadith 29
Read all hadith in Book 97: Oneness, Uniqueness of Allah (Tawheed)