Is there a requirement to repeat the prayer if one laughs during it?
Machine translationRead the Arabic original
Answer:
What is the ruling on laughing during the prayer, and if one laughs during the prayer, does he have to repeat it?
Answer:
Laughing during the prayer invalidates it by the consensus of the scholars. So if one laughs during the prayer, it is invalid. Likewise, if he speaks intentionally, his prayer is invalid, unless he is forgetful or ignorant, in which case the prayer of the forgetful person and the ignorant person is not invalid. But laughing invalidates it absolutely; because it is belittling the prayer and being careless with it.
What is the ruling on laughing during the prayer, and if one laughs during the prayer, does he have to repeat it?
Answer:
Laughing during the prayer invalidates it by the consensus of the scholars. So if one laughs during the prayer, it is invalid. Likewise, if he speaks intentionally, his prayer is invalid, unless he is forgetful or ignorant, in which case the prayer of the forgetful person and the ignorant person is not invalid. But laughing invalidates it absolutely; because it is belittling the prayer and being careless with it.
Source
binbaz.org.sa
The Arabic text is copied verbatim from the original source, without any edits.