" The Messenger of Allah commanded us to examine the eyes and ears (of animals for sacrifice)."

سَمِعْتُ عَلِيًّا يَقُولُ أَمَرَنَا رَسُولُ اللَّهِ ﷺ أَنْ نَسْتَشْرِفَ الْعَيْنَ وَالأُذُنَ