١٦ـ الْحُسَيْنُ بْنُ مُحَمَّدٍ عَنْ مُعَلَّى بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ عَبْدِ الله الْوَاسِطِيِّ عَنْ قَاسِمٍ الصَّيْقَلِ قَالَ كَتَبْتُ إِلَى الرِّضَا (عَلَيْهِ الْسَّلام) أَنِّي أَعْمَلُ أَغْمَادَ السُّيُوفِ مِنْ جُلُودِ الْحُمُرِ الْمَيْتَةِ فَيُصِيبُ ثِيَابِي فَأُصَلِّي فِيهَا فَكَتَبَ (عَلَيْهِ الْسَّلام) إِلَيَّ اتَّخِذْ ثَوْباً لِصَلاَتِكَ فَكَتَبْتُ إِلَى أَبِي جَعْفَرٍ الثَّانِي (عَلَيْهِ الْسَّلام) كُنْتُ كَتَبْتُ إِلَى أَبِيكَ (عَلَيْهِ الْسَّلام) بِكَذَا وَكَذَا فَصَعَّبَ عَلَيَّ ذَلِكَ فَصِرْتُ أَعْمَلُهَا مِنْ جُلُودِ الْحُمُرِ الْوَحْشِيَّةِ الذَّكِيَّةِ فَكَتَبَ (عَلَيْهِ الْسَّلام) إِلَيَّ كُلُّ أَعْمَالِ الْبِرِّ بِالصَّبْرِ يَرْحَمُكَ الله فَإِنْ كَانَ مَا تَعْمَلُ وَحْشِيّاً ذَكِيّاً فَلاَ بَأْسَ. 
16. Al-Husayn ibn Muhammad has narrated from Mu‘alla’ ibn Muhammad, from Muhammad ibn ‘Abd Allah al-Wasitiy, from al-Qasim al-Sayqal who has said the following: “I once wrote to al-Rida’ , saying, ‘I make sword sheathing of leather from dead donkeys. My clothes come in contact with it and I perform Salah (prayer) with them. He (the Imam) , wrote to me, ‘Find other clothes for your Salah (prayer).’ I then wrote to abu Ja’far, the second , saying, ‘I would write to your father , about such and such issues. It became difficult for me and I then began to make them from leather of wild donkeys, properly slaughtered.’ He (the Imam) wrote to me, ‘All good deeds require patience, I pray to Allah to grant you blessings. If what you do is from wild ones and properly slaughtered, then it is not harmful.’” 