Things That Invalidate Salah (Prayer) Li...
Al-Kāfi
Volume 3, Book 4, Chapter 45
11ـ الْحُسَيْنُ بْنُ مُحَمَّدٍ الأشْعَرِيُّ عَنْ عَبْدِ الله بْنِ عَامِرٍ عَنْ عَلِيِّ بْنِ مَهْزِيَارَ عَنْ فَضَالَةَ عَنْ أَبَانٍ عَنْ سَلَمَةَ بْنِ أَبِي حَفْصٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام)
أَنَّ عَلِيّاً (صلّى اللهُ عَلَيْهِ وَآلِه) كَانَ يَقُولُ لاَ يَقْطَعُ الصَّلاَةَ الرُّعَافُ وَلاَ الْقَيْءُ وَلاَ الدَّمُ فَمَنْ وَجَدَ أَزّاً فَلْيَأْخُذْ بِيَدِ رَجُلٍ مِنَ الْقَوْمِ مِنَ الصَّفِّ فَلْيُقَدِّمْهُ يَعْنِي إِذَا كَانَ إِمَاماً.
11. Al-Husayn ibn Muhammad al-Ash’ariy has narrated from ‘Abd Allah ibn ‘Amir from Ali ibn Mahziyar from Fadalah from Aban from Salmah ibn abu Hafs who has said the following:
“Abu ‘Abd Allah 
, has said, ‘Ali , would say, ‘Nose bleeding does not discontinue Salah (prayer) nor vomiting, or blood. If one feels a pinch he can hold another man’s hand of the people in the rows to come forward, if he is an Imam, to lead.’”
- مجهولMirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/239)Allamah Baqir al-Majlisi
