٤ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ عَلِيِّ بْنِ أَبِي حَمْزَةَ عَنْ أَبِي بَصِيرٍ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَم) عَنْ رَجُلٍ شَكَّ فِي طَوَافِ الْفَرِيضَةِ قَالَ يُعِيدُ كُلَّمَا شَكَّ قُلْتُ جُعِلْتُ فِدَاكَ شَكَّ فِي طَوَافِ نَافِلَةٍ قَالَ يَبْنِي عَلَى الأَقَلِّ.
4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from Ali ibn abu Hamzah from abu Basir who has said the following: “I once asked abu ‘Abd Allah , about a man who doubts in obligatory Tawaf. He (the Imam) said, ‘He must do it again whenever he doubts.’ I said, ‘I pray to Allah to keep my soul in service for your cause, what if one doubts in optional Tawaf? He (the Imam) said, ‘He considers it to be of the lesser amount.’” 