Signs of Edible and Inedible Eggs

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 عليه السلام, 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.’”