He slaughtered his sacrifice before the prayer and mentioned this to the Prophet ﷺ, who said, "Repeat your sacrifice."
حدثنا أبو بكر بن أبي شيبة حدثنا أبو خالد الأحمر عن يحيى بن سعيد عن عباد بن تميم
أنه ذبح قبل الصلاة فذكره للنبي ﷺ فقال أعد أضحيتك
No references are available.
[Sahih] Ahmad narrated it, 3/454, 4/341, from the hadith of Yahya with this wording, but its chain is disconnected. Abbad did not hear from Uwaymar, but his hadith has corroborating evidence. See the previous hadith.