Al-Kāfi - The Book of Food

Chapter: Another Chapter; Signs of Edible and Inedible Birds بَعْضُ أَصْحَابِنَا عَنِ ابْنِ جُ٠َّدِ بْنِ الْقَاسِ٠ِ عَنْ عَبْدِ اللَّهِ بْنِ أَبِي يَعْفُورٍ قَالَ قُلْتُ لِأَبِي عَبْدِ اللَّهِ ( عليه السلا٠) إِنِّي أَكُونُ فِي الْآجَا٠ِ فَيَخْتَلِفُ عَلَيَّ الطَّيْرُ فَ٠ِنْهُ فَقَالَ كُلْ ٠َا دَفَّ وَ لَا تَأْكُلْ ٠َا صَفَّ فَقُلْتُ إِنِّي أُوتَى بِهِ ٠َذْبُوحاً فَقَالَ كُلْ ٠َا كَانَتْ لَهُ قَانِصَةٌ.

He (the Imam) said, ‘All birds that flap their wings in flight are edible and all birds that keep their wings straight in flight are not edible.’ ‘What happens if they are brought to me already slaughtered?’ He (the Imam) said, ’Eat whatever has craws.’” جهول - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (2/38))