Abu Hurairah reported the Messenger of Allah (ﷺ) as saying; Does he who raises his head while the Imam is prostrating not fear that Allah may change his head into a donkey's or his face into a donkey's face.
Reference: Sunan Abi Dawud 623 In-book : Book 2, Hadith 233 English translation : Book 2, Hadith 623
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