Rules about the Very Old or One with an Illness
Al-Kāfi|Volume 3|Book 4|Chapter 64
1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَنَانِ بْنِ سَدِيرٍ عَنْ أَبِيهِ قَالَ قُلْتُ لأَبِي جَعْفَرٍ (عَلَيْهِ الْسَّلام) أَ تُصَلِّي النَّوَافِلَ وَأَنْتَ قَاعِدٌ فَقَالَ مَا أُصَلِّيهَا إِلاَّ وَأَنَا قَاعِدٌ مُنْذُ حَمَلْتُ هَذَا اللَّحْمَ وَبَلَغْتُ هَذَا السِّنَّ.
1. Ali ibn Ibrahim has narrated from his father from Hanan ibn Sadir from his father who has said the following: “I once asked abu Ja’far عليه السلام, ’Do you perform optional Salah (prayer) in a sitting position? He (the Imam) replied, ‘I perform them in a sitting position only from the time I have gained this much weight and reached this age.’”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/332)
- Ṣaḥīḥ al-Kāfī, vol. 1, p. 318