Al-Kāfi - The Book of Prayer

Chapter: Kinds of Clothes in Which It Is Undesirable to Perform Salah (Prayer) As Well As Otherwise َّدُ بْنُ يَحْيَى عَنْ بَعْضِ أَصْحَابِنَا عَنْ عَلِيِّ بْنِ عُقْبَةَ عَنْ ٠ُوسَى بْنِ أُكَيْلٍ النُّ٠َيْرِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) قَالَ سَأَلْتُهُ عَنِ الرَّجُلِ يَكُونُ فِي السَّفَرِ وَ٠َعَهُ السِّكِّينُ فِي خُفِّهِ لاَ يَسْتَغْنِي عَنْهَا أَوْ فِي سَرَاوِيلِهِ ٠ِفْتَاحُ يَخَافُ عَلَيْهِ الضَّيْعَةَ أَوْ فِي وَسَطِهِ الْ٠ِنْطَقَةُ فِيهَا حَدِيدٌ قَالَ لاَ بَأْسَ بِالسِّكِّينِ وَالْ٠ُسَافِرِ فِي وَقْتِ ضَرُورَةٍ وَكَذَلِكَ الْ٠ِفْتَاحُ يَخَافُ عَلَيْهِ أَوْ فِي النِّسْيَانِ وَلاَ بَأْسَ بِالسَّيْفِ وَكَذَلِكَ آلَةُ السِّلاَحِ فِي الْحَرْبِ وَفِي غَيْرِ ذَلِكَ لاَ تَجُوزُ الصَّلاَةُ فِي شَيْ‏ءٍ ٠ِنَ الْحَدِيدِ فَإِنَّهُ نَجَسٌ ٠13.

Muhammad ibn Yahya has narrated from certain persons of our people from Ali ibn ‘Uqbah from Musa ibn ‘Ukayl al-Numayriy who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who on a journey has a knife in his slipper without which he cannot do anything or it is in his pant, and a key which he is afraid of losing it, or that around his midsection is a belt in which there is iron.

He (the Imam) said, ‘It is not an offense to have a knife, or a belt for a traveler in case he needs them as well as a key for which one is afraid about forgetting it. It is not an offense to have a sword or weapons during a war and in other times. It is not permissible to perform Salah (prayer) with iron; it is Najis (unclean) and metamorphosed. ’ ” رسل - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/314))