وَ رُوِيَ عَنِ اَلْفُضَيْلِ بْنِ يَسَارٍ أَنَّهُ قَالَ: قُلْتُ لِأَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ أَكُونُ فِي اَلصَّلاَةِ فَأَجِدُ غَمْزاً فِي بَطْنِي أَوْ أَزّاً أَوْ ضَرَبَاناً فَقَالَ «اِنْصَرِفْ وَ تَوَضَّأْ وَ اِبْنِ عَلَى مَا مَضَى مِنْ صَلاَتِكَ مَا لَمْ تَنْقُضِ اَلصَّلاَةَ بِالْكَلاَمِ مُتَعَمِّداً فَإِنْ تَكَلَّمْتَ نَاسِياً فَلاَ شَيْءَ عَلَيْكَ وَ هُوَ بِمَنْزِلَةِ مَنْ تَكَلَّمَ فِي اَلصَّلاَةِ نَاسِياً» قُلْتُ وَ إِنْ قَلَبَ وَجْهَهُ عَنِ اَلْقِبْلَةِ قَالَ «نَعَمْ وَ إِنْ قَلَبَ وَجْهَهُ عَنِ اَلْقِبْلَةِ.
It is narrated from al-Fudayl ibn Yasar that He said: "I said to Imam Muhammad ibn Ali Al-Baqir (a.s): 'I am praying and I feel a pain in my stomach, or a rumbling, or a sensation of something moving.' Imam (a.s) said: 'Turn away (from prayer) and perform ablution, and then continue the prayer you have already performed, as long as you have not invalidated the prayer by deliberately speaking. If you spoke by mistake, there is no harm, and it is like the one who speaks in prayer by mistake.' I asked: 'What if he turns his face away from the qibla?' Imam (a.s) said: 'Yes, even if he turns his face away from the qibla.'"