[Machine] He said: "Whichever man enters into prayer and he is struck with a rumbling in his stomach, or vomiting, or bleeding, and he fears to cause a disturbance before the Imam finishes his prayer, then he should place his hand on his nose. If he intends to count what has passed, then he should not speak until he performs ablution, then he completes what remains. If he speaks, then he should face towards him. And if he has already recited the Tashahhud and fears to cause a disturbance before the Imam finishes his prayer, then he should make the Salam, for his prayer has been completed." Ath-Thawri narrated it from Abu Ishaq from Al-Harith from Ali, in some of its meanings. Al-Harith Al-Awar is weak, and Asim bin Damrah is not strong. It was also narrated from a third chain from Ali, and it contains weakness. And Allah knows best.  

أَنَّهُ قَالَ أَيُّمَا رَجُلٍ دَخَلَ فِي الصَّلَاةِ فَأَصَابَهُ رِزٌّ فِي بَطْنِهِ أَوْ قَيْءٌ أَوْ رُعَافٌ فَخَشِيَ أَنْ يُحْدِثَ قَبْلَ أَنْ يُسَلِّمَ الْإِمَامُ فَلْيَجْعَلْ يَدَهُ عَلَى أَنْفِهِ فَإِنْ كَانَ يُرِيدُ أَنْ يَعْتَدَّ بِمَا قَدْ مَضَى فَلَا يَتَكَلَّمْ حَتَّى يَتَوَضَّأَ ثُمَّ يُتِمَّ مَا بَقِيَ فَإِنْ تَكَلَّمَ فَلْيَسْتَقْبِلْ وَإِنْ كَانَ قَدْ تَشَهَّدَ وَخَافَ أَنْ يُحْدِثَ قَبْلَ أَنْ يُسَلِّمَ الْإِمَامُ فَلْيُسَلِّمْ فَقَدْ تَمَّتْ صَلَاتُهُ وَرَوَاهُ الثَّوْرِيُّ عَنْ أَبِي إِسْحَاقَ عَنِ الْحَارِثِ عَنْ عَلِيٍّ بِبَعْضِ مَعْنَاهُ وَالْحَارِثُ الْأَعْوَرُ ضَعِيفٌ وَعَاصِمُ بْنُ ضَمْرَةَ غَيْرُ قَوِيٍّ وَرُوِيَ مِنْ وَجْهٍ ثَالِثٍ عَنْ عَلِيٍّ ؓ وَفِيهِ أَيْضًا ضَعْفٌ وَاللهُ أَعْلَمُ