Man Lā Yaḥḍuruh al-Faqīh
Hadith 3701941 - رَوَى اِبْنُ بُكَيْرٍ عَنْ زُرَارَةَ قَالَ: سَأَلْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ مَا حَدُّ اَلْمَرَضِ اَلَّذِي يُفْطِرُ فِيهِ اَلصَّائِمُ وَ يَدَعُ اَلصَّلاَةَ مِنْ قِيَامٍ فَقَالَ « « بَلِ اَلْإِنْسٰانُ عَلىٰ نَفْسِهِ بَصِيرَةٌ » وَ هُوَ أَعْلَمُ بِمَا يُطِيقُهُ.
Hadith.1941 - Ibn Bukayr narrated from Zurara, who said:
"I asked Abu Abdullah (as) about the extent of illness that permits a fasting person to break their fast and to pray sitting instead of standing.
Imam (as) said: 'Indeed, man is a witness over himself' (Surah Al-Qiyamah 75:14), and he knows best what he can bear."