Narrated `Abbas bin Tamim: My uncle asked Allah's Apostle about a person who imagined to have passed wind during the prayer. Allah' Apostle replied: "He should not leave his prayers unless he hears sound or smells something."

Narrated `Abbas bin Tamim: My uncle said: The Prophet said, "One should not leave his prayer unless he hears sound or smells something."

Narrated `Abbas bin Tamim: that his uncle said: "The Prophet was asked: If a person feels something during his prayer; should one interrupt his prayer?" The Prophet said: No! You should not give it up unless you hear a sound or smell something." Narrated Ibn Abi Hafsa: Az-Zuhri said, "There is no need of repeating ablution unless you detect a smell or hear a sound."