CHAPTER: The Manner Of Prostration.
Narrated Al-Bara ibn Azib: Al-Bara described to us (the nature of prostration). He placed his hands (palms), reclined on his knees, and raised his hips; he said: This is how the Messenger of Allah صلی اللہ علیہ وسلم used to prostrate himself.
Anas reported the Messenger of Allah صلی اللہ علیہ وسلم as saying; Adopt a moderate position when prostrating yourselves, and see that none of you stretches out his forearms (on the ground) like a dog.
Maimunah said: When the Prophet صلی اللہ علیہ وسلم prostrated himself, he kept his arms so far away from his sides that if a lamb had wanted to pass under his arms, it could have done so.
Narrated Abdullah ibn Abbas: I came to the Prophet صلی اللہ علیہ وسلم from behind. I saw the whiteness of his armpits and he kept his arms away from his sides and raised his stomach (from the ground).
Narrated Ahmar ibn Jaz: When the Messenger of Allah صلی اللہ علیہ وسلم prostrated himself, he kept his arms far away from his sides so much so that we took pity on him.
Abu Hurairah reported the Prophet صلی اللہ علیہ وسلم as saying: when one of you prostrates himself, he should not stretch out his forearms ( on the ground) like a dog and he should join both of his thighs.