I said to Imam Muhammad ibn Ali Al-Baqir (as): 'I am praying and I feel a pain in my stomach, or a rumbling, or a sensation of something moving.' Imam (as) 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 (as) said: 'Yes, even if he turns his face away from the qibla.'"