Man Lā Yaḥḍuruh al-Faqīh
Hadith 11192687 - وَ سَأَلَ زُرَارَةُ أَبَا جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ : عَنِ اَلْمُحْرِمِ يَقَعُ اَلذُّبَابُ عَلَى وَجْهِهِ حِينَ يُرِيدُ اَلنَّوْمَ فَيَمْنَعُهُ مِنَ اَلنَّوْمِ أَ يُغَطِّي وَجْهَهُ إِذَا أَرَادَ أَنْ يَنَامَ قَالَ «نَعَمْ».
Hadith.2687 - Zurara asked Abu Ja'far (as) about a person in the state of ihram who has flies landing on their face, preventing them from sleeping, and whether they may cover their face when they wish to sleep.
Imam (as) said: "Yes."