عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ عَلِيِّ بْنِ الزَّيَّاتِ عَنْ زُرَارَةَ قَالَ قُلْتُ لِأَبِي جَعْفَرٍ ( عليه السلام ) الْبَيْضُ فِي الْآجَامِ فَقَالَ مَا اسْتَوَى طَرَفَاهُ فَلَا تَأْكُلْ وَ مَا اخْتَلَفَ طَرَفَاهُ فَكُلْ .
2. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Ali ibn al-Zayyat (Ali ibn Ri’ab) from Zurarah who has said the following: “I once asked abu Ja’far , about the eggs that I may find in the wilderness. He (the Imam) said, ‘Do not eat whatever has its both ends of the same shape and eat that which has the ends of different shapes.’” 