Muwatta Malik, Book 23, Hadith 1034 (In-Book) ⓘ

ahya related to me from Malik from Yahya ibn Said from Bushayr ibn Yasar that Abu Burda ibn Niyar sacrificed an animal before the Messenger of Allah, may Allah bless him and grant him peace, sacrificed on the Day of Sacrifice. He asserted that the Messenger of Allah, may Allah bless him and grant him peace, ordered him to sacrifice another animal, and he, Abu Burda, said, "What if I can only find an animal less than one year old, Messenger of Allah?" He had said, "If you can only find a young animal, then sacrifice it."

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ بُشَيْرِ بْنِ يَسَارٍ، أَنَّ أَبَا بُرْدَةَ بْنَ نِيَارٍ، ذَبَحَ ضَحِيَّتَهُ قَبْلَ أَنْ يَذْبَحَ، رَسُولُ اللَّهِ صلى الله عليه وسلم يَوْمَ الأَضْحَى فَزَعَمَ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَمَرَهُ أَنْ يَعُودَ بِضَحِيَّةٍ أُخْرَى ‏.‏ قَالَ أَبُو بُرْدَةَ لاَ أَجِدُ إِلاَّ جَذَعًا يَا رَسُولَ اللَّهِ ‏.‏ قَالَ ‏ "‏ وَإِنْ لَمْ تَجِدْ إِلاَّ جَذَعًا فَاذْبَحْ ‏" ‏ ‏.‏