The Messenger of Allah (ﷺ) said: Observe moderation in prostration, and let none of you stretch out his forearms (on the ground) like a dog.
Sahih Muslim Book 4, Hadith 264
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Sahih Muslim Book 4, Hadith 263 Next Hadith → " None of you should stretch out his forearms like the stretching out of a dog."

Sahih Muslim Book 4, Hadith 265