أَبُو عَلِيٍّ الْأَشْعَرِيُّ عَنْ بَعْضِ أَصْحَابِنَا عَنِ ابْنِ أَبِي نَجْرَانَ عَنْ دَاوُدَ بْنِ فَرْقَدٍ قَالَ سَأَلْتُ أَبَا عَبْدِ اللَّهِ ( عليه السلام ) عَنِ الشَّاةِ وَ الْبَقَرَةِ رُبَّمَا دَرَّتِ اللَّبَنَ مِنْ غَيْرِ أَنْ يَضْرِبَهَا الْفَحْلُ وَ الدَّجَاجَةُ رُبَّمَا بَاضَتْ مِنْ غَيْرِ أَنْ يَرْكَبَهَا الدِّيكُ قَالَ فَقَالَ ( عليه السلام ) كُلُّ هَذَا حَلَالٌ طَيِّبٌ لَكَ كُلُّ شَيْ‏ءٍ يُؤْكَلُ لَحْمُهُ فَجَمِيعُ مَا كَانَ مِنْهُ مِنْ لَبَنٍ أَوْ بَيْضٍ أَوْ إِنْفَحَةٍ فَكُلُّ هَذَا حَلَالٌ طَيِّبٌ وَ رُبَّمَا يَكُونُ هَذَا قَدْ ضَرَبَهُ الْفَحْلُ وَ يُبْطِئُ وَ كُلُّ هَذَا حَلَالٌ .
7. Abu Ali al-Ash‘ariy has narrated from certain persons of our people from ibn abu Najran from Dawud ibn Farqad who has said the following: “I once asked abu ‘Abd Allah , about sheep and cows from which I may draw milk without their mating and the eggs of a hen without mating with a rooster . He (the Imam) said, ‘All of such things are lawful and fine for you if they are from edible animals. Milk, eggs, rennet all of such things are lawful and fine. Mating with a male may have taken place but is delayed and all of such things are lawful.’” 