قَالَ مُحَمَّدُ بْنُ عَبْدِ اللَّهِ لِلرِّضَا ص وَ أَنَا أَسْمَعُ حَدَّثَنِي أَبِي عَنْ أَهْلِ بَيْتِهِ عَنْ آبَائِهِ ع أَنَّهُ قَالَ لِبَعْضِهِمْ إِنَّ فِي بِلَادِنَا مَوْضِعَ رِبَاطٍ يُقَالُ لَهُ قَزْوِينُ وَ عَدُوّاً يُقَالُ لَهُ الدَّيْلَمُ فَهَلْ مِنْ جِهَادٍ أَوْ هَلْ مِنْ رِبَاطٍ[4] فَقَالَ عَلَيْكُمْ بِهَذَا الْبَيْتِ فَحُجُّوهُ فَأَعَادَ عَلَيْهِ الْحَدِيثَ فَقَالَ عَلَيْكُمْ بِهَذَا الْبَيْتِ فَحُجُّوهُ أَ
“Once Muhammad ibn ‘Abd Allah said to al-Rida’, Alayhi al-Salam, when I was listening, said, ‘My father has narrated from the people of his family from their ancestors, Alayhim al-Salam, that he said to a certain one of them (ancestors), “In our location there is a place called Qazwin for keeping guard against the enem