Sunan An Nasai 1110

It was narrated that Qatadah said: I heard Anas (narrate) that the Messenger of Allah (ﷺ) said: 'Be moderate in prostration and do not rest your forearms along the ground like a dog.' ..

It was narrated that Abu Mas'ud said: The Messenger of Allah (ﷺ) said: 'No prayer is valid in which a man does not maintain his back (at ease) when bowing and prostrating.' ..

Abdur-Rahman bin Shibl said: The Messenger of Allah (ﷺ) forbade three things: Pecking like a crow, resting one's forearms on the ground like a predator, and allocating the same place for prayer like a camel gets used to a certain place. ..

It was narrated from Ibn 'Abbas that : The Messenger of Allah (ﷺ) said: I have been commanded to prostrate on seven and not to tuck up my hair or garment. ..

It was narrated from 'Abdullah bin 'Abbas that: He saw 'Abdullah bin Al-Harith praying with his hair bound behind him. He stopped and started to undo it. When he finished he turned to Ibn 'Abbas and said: What were you doing to my head? He said:..

It was narrated that Ibn 'Abbas said: The Prophet (ﷺ) was commanded to prostrate on seven bones and was forbidden to tuck up his hair and garment. ..