١٠ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنْ سَهْلٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ عَبْدِ الْكَرِيمِ بْنِ عَمْرٍو عَنِ الْحَسَنِ بْنِ زِيَادٍ قَالَ سُئِلَ أَبُو عَبْدِ الله (عَلَيْهِ الْسَّلام) عَنِ الرَّجُلِ يَبُولُ فَيُصِيبُ فَخِذَهُ وَ رُكْبَتَهُ قَدْرَ نُكْتَةٍ مِنْ بَوْلٍ فَيُصَلِّي ثُمَّ يَذْكُرُ بَعْدُ أَنَّهُ لَمْ يَغْسِلْهُ قَالَ يَغْسِلُهُ وَيُعِيدُ صَلاَتَهُ.
10. Ali ibn Muhammad has narrated from Sahl from Ahmad ibn Muhammad ibn abu Nasr from ‘Abd al-Karim ibn ‘Amr from al-Hassan ibn Ziyad who has said the following: “Once abu ‘Abd Allah , was asked about a man whose thigh and knee come in contact with a small drop of urine. He performs Salah (prayer) then remembers that he had not washed it clean? He (the Imam) said, ‘He must perform his Salah (prayer) again.’” 