٢ـ حَمَّادُ بْنُ عِيسَى عَنْ حَرِيزٍ عَنْ زُرَارَةَ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) هَلْ فِي الْبِغَالِ شَيْ‏ءٌ فَقَالَ لاَ فَقُلْتُ فَكَيْفَ صَارَ عَلَى الْخَيْلِ وَلَمْ يَصِرْ عَلَى الْبِغَالِ فَقَالَ لأَنَّ الْبِغَالَ لاَ تَلْقَحُ وَالْخَيْلُ الإِنَاثُ يُنْتَجْنَ وَلَيْسَ عَلَى الْخَيْلِ الذُّكُورِ شَيْ‏ءٌ قَالَ فَقُلْتُ فَمَا فِي الْحَمِيرِ فَقَالَ لَيْسَ فِيهَا شَيْ‏ءٌ قَالَ قُلْتُ هَلْ عَلَى الْفَرَسِ أَوِ الْبَعِيرِ يَكُونُ لِلرَّجُلِ يَرْكَبُهُمَا شَيْ‏ءٌ فَقَالَ لاَ لَيْسَ عَلَى مَا يُعْلَفُ شَيْ‏ءٌ إِنَّمَا الصَّدَقَةُ عَلَى السَّائِمَةِ الْمُرْسَلَةِ فِي مَرْجِهَا عَامَهَا الَّذِي يَقْتَنِيهَا فِيهِ الرَّجُلُ فَأَمَّا مَا سِوَى ذَلِكَ فَلَيْسَ فِيهِ شَيْ‏ءٌ.
2. Hammad ibn ‘Isa has narrated from Hariz from Zurarah who has said the following: “I once asked abu ’Abd Allah , if there is Zakat on mules. He (the Imam) said, ‘No, Zakat is not due on it.’ I then said, ‘How is it that there is Zakat on horses but not on mules?’ He (the Imam) said, ‘It is because mules do not reproduce but mares do so and Zakat is not due on horses.’ I then asked are donkeys subject to Zakat?’ He (the Imam) said, ‘It is not subject to Zakat.’ I then asked, ‘Are horses and camels that one uses for riding subject to Zakat?’ He (the Imam) said, ‘No, Zakat is not due on whatever one feeds. Only that which is left in pastures land to graze for one year is subject to Zakat, while in one’s possession. Other than this is not subject to Zakat.’” 