The ablution is not invalidated by what is heard inside the stomach
Machine translationRead the Arabic original
The second question of the fatwa number ( 10542 ) Q 2: If a personis in a state of wudu' and hears a sound of wind inside his stomach, but this wind does not come out of the anus, what is the ruling? Does he remain in a state of wudu' or is his wudu' broken?
A 2: Praise be to Allah alone, and blessings and peace be upon His Messenger, his family, and his Companions... After that: If a person is in a state of ablution and hears the sound of wind inside his stomach, his ablution is not invalidated by that if nothing comes out; based on the saying of the Prophet (peace and blessings be upon him):
If any of you has a pain in his abdomen, but is doubtful whether or not anything has issued from him, he should not leave the mosque unless he hears a sound or perceives a smell.
إذا وجد أحدكم في بطنه شيئًا فأشكل عليه، أخرج منه شيء أم لا؟ فلا يخرجن من المسجد حتى يسمع صوتًا أو يجد ريحًا
Source
www.alifta.gov.sa
The Arabic text is copied verbatim from the original source, without any edits.