Musnad Ahmad 1275
It was narrated that ‘Ali (رضي الله عنه) said:
The Messenger of Allah (ﷺ) commanded us to check the eyes and ears (of sacrificial animals), and told us not to sacrifice any that is one-eyed, or any muqabalah, mudabarah, sharqa’ or kharqa`.  Zuhair said: “I said to Abu Ishaq, “Did he mention the one with its nose [or ear or lip] cut off?” He said: “No”, I said: “What is al-muqabalah?” He said: “One that has the edge of its ears cut.” I said: “What is al-mudabarah?” He said: “One whose ears are slit from the back.” I said: “What is ash-sharqa`?” He said: “One whose ears are slit in two lengthwise.” I said: “What is al-kharqa`?” He said: “One that has a round hole in its ear as a distinguishing mark.””
حَدَّثَنَا يَحْيَى بْنُ أَبِي بُكَيْرٍ، حَدَّثَنَا زُهَيْرٌ، أَنْبَأَنَا أَبُو إِسْحَاقَ، عَنْ شُرَيْحِ بْنِ النُّعْمَانِ، قَالَ وَكَانَ رَجُلَ صِدْقٍ عَنْ عَلِيٍّ، رَضِيَ اللَّهُ عَنْهُ قَالَ أَمَرَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنْ نَسْتَشْرِفَ الْعَيْنَ وَالْأُذُنَ وَأَنْ لَا نُضَحِّيَ بِعَوْرَاءَ وَلَا مُقَابَلَةٍ وَلَا مُدَابَرَةٍ وَلَا شَرْقَاءَ وَلَا خَرْقَاءَ قَالَ زُهَيْرٌ فَقُلْتُ لِأَبِي إِسْحَاقَ أَذَكَرَ عَضْبَاءَ قَالَ لَا قُلْتُ مَا الْمُقَابَلَةُ قَالَ هِيَ الَّتِي يُقْطَعُ طَرَفُ أُذُنِهَا قُلْتُ فَالْمُدَابَرَةُ قَالَ الَّتِي يُقْطَعُ مُؤَخَّرُ الْأُذُنِ قُلْتُ مَا الشَّرْقَاءُ قَالَ الَّتِي يُشَقُّ أُذُنُهَا قُلْتُ فَمَا الْخَرْقَاءُ قَالَ الَّتِي تَخْرِقُ أُذُنَهَا السِّمَةُ‏.‏