The Sufficient (Vol 3) · Hadith 1599 (#Ḥadīth #3)
Chapter 64 | Rules about the Very Old or One with an Illness
3ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ جَمِيلِ بْنِ دَرَّاجٍ أَنَّهُ سَأَلَ أَبَا عَبْدِ الله (عَلَيْهِ الْسَّلام) مَا حَدُّ الْمَرِيضِ الَّذِي يُصَلِّي قَاعِداً فَقَالَ إِنَّ الرَّجُلَ لَيُوعَكُ وَيَحْرَجُ وَلَكِنَّهُ هُوَ أَعْلَمُ بِنَفْسِهِ وَلَكِنْ إِذَا قَوِيَ فَلْيَقُمْ.
3. Ali ibn Ibrahim has narrated from his father from ibn abu ‘ Umayr from Jamil ibn Darraj who has said the following: “I once asked abu ‘Abd Allah , about a man who suffers from an illness. In what condition he is allowed to perform Salah (prayer) in a sitting position? He (the Imam) said, ‘A man is unwell and experiences anguish; however, he knows better about himself. When he is able he must stand up.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).