Muwatta Malik 1032
موطأ مالك#1032Sahihوَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ عَبَّادِ بْنِ تَمِيمٍ، أَنَّ عُوَيْمِرَ بْنَ أَشْقَرَ، ذَبَحَ ضَحِيَّتَهُ قَبْلَ أَنْ يَغْدُوَ، يَوْمَ الأَضْحَى وَأَنَّهُ ذَكَرَ ذَلِكَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم فَأَمَرَهُ أَنْ يَعُودَ بِضَحِيَّةٍ أُخْرَى .
Yahya related to me from Malik from Yahya ibn Said from Abbad ibn Tamin that one time Uwaymir ibn Ashqar sacrificed his animal before the prayer on the morning of the Day of Sacrifice, and he mentioned that the Messenger of Allah, may Allah bless him and grant him peace, had ordered him to sacrifice another animal
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 23:5