١٧ـ أَحْمَدُ بْنُ إِدْرِيسَ وَمُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنْ أَحْمَدَ بْنِ الْحَسَنِ عَنْ عَمْرِو بْنِ سَعِيدٍ عَنْ مُصَدِّقِ بْنِ صَدَقَةَ عَنْ عَمَّارٍ السَّابَاطِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ الرَّجُلُ يَقْرِضُ مِنْ شَعْرِهِ بِأَسْنَانِهِ أَ يَمْسَحُهُ بِالْمَاءِ قَبْلَ أَنْ يُصَلِّيَ قَالَ لاَ بَأْسَ إِنَّمَا ذَلِكَ فِي الْحَدِيدِ. 
17. Ahmad ibn Idris and Muhammad ibn Yahya have narrated from Muhammad ibn Ahmad from Ahmad ibn al-al-Hassan from ‘Amr ibn Sa‘id from Musaddiq ibn Sadaqah from ‘Ammar al-Sabatiy who has said the following: “I once asked abu ‘Abd Allah , about a man who cuts some of his hairs with his teeth. Should he wipe it with water before Salah (prayer)? He (the Imam) said, ‘It is not harmful. This (wiping) applies only when it is with iron.’” 