Musnad Ahmad 851
It was narrated that `Ali (رضي الله عنه) said:
The Messenger of Allah (ﷺ) commanded us to examine the eyes and ears [of sacrificial animals] and not to sacrifice one that was blind in one eye, or al-muqabalah, or mudabarah, or sharqaʼ, or kharqaʼ. Zuhair said: I said to Abu Ishaq; Did he mention the one with its nose [or ear or lip] cutoff? 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 al-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 حَسَنُ بْنُ مُوسَى، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا أَبُو إِسْحَاقَ، عَنْ شُرَيْحِ بْنِ النُّعْمَانِ، قَالَ أَبُو إِسْحَاقَ 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 قُلْتُ لِأَبِي إِسْحَاقَ أَذَكَرَ عَضْبَاءَ قَالَ لَا قُلْتُ مَا الْمُقَابَلَةُ قَالَ يُقْطَعُ طَرَفُ الْأُذُنِ قُلْتُ مَا الْمُدَابَرَةُ قَالَ يُقْطَعُ مُؤَخَّرُ الْأُذُنِ قُلْتُ مَا الشَّرْقَاءُ قَالَ تُشَقُّ الْأُذُنُ قُلْتُ مَا الْخَرْقَاءُ قَالَ تَخْرِقُ أُذُنَهَا السِّمَةُ‏.‏