Man Lā Yaḥḍuruh al-Faqīh
Hadith 10641069 - وَ سَأَلَ اَلْحَلَبِيُّ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: عَنِ اَلرَّجُلِ يَحْتَكُّ وَ هُوَ فِي اَلصَّلاَةِ قَالَ «لاَ بَأْسَ.
Hadith.1069 - Al-Halabi asked Imam Jafar ibn Muhammad Al-Sadiq (as) about a person who scratches himself while in prayer. He (as) replied: "There is no harm."