Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: A blind man fell into a well, and some people praying behind the Prophet Muhammad (peace be upon him) laughed. So the Prophet Muhammad (peace be upon him) ordered those who laughed to perform ablution again and repeat the prayer. Abu Umayyah has narrated this: It is reported from Sayyiduna Anas (may Allah be pleased with him): The Prophet Muhammad (peace be upon him) was leading the people in prayer, when a blind man entered the mosque and fell into a well. Some people behind the Prophet Muhammad (peace be upon him) laughed. Ibn Makhlad and Sayyiduna Anas (may Allah be pleased with him) and Abu Al-Aliyah have narrated this: The Prophet Muhammad (peace be upon him) was leading the people in prayer, there was a well in the middle of the mosque, a blind man came and fell into it, so some people who were praying behind the Prophet Muhammad (peace be upon him) laughed. The Prophet Muhammad (peace be upon him) ordered those who laughed to perform ablution again and repeat the prayer. Abu Umayyah says: This hadith is munkar (denounced). Shaykh Abu Al-Hasan says: This narration has been transmitted by Abdul Rahman from Salam, and this person is matruk (abandoned), who fabricates hadiths. This narration has been transmitted by Dawud bin Muhabbar, and this person is also matruk, who fabricates hadiths. He has transmitted this narration from the father of Ayyub, who is weak, and he has narrated it from Qatadah from Sayyiduna Anas (may Allah be pleased with him).