Muhammad bin Muslim bin al-Saib said: one day I prayed by the side of Anas bin Malik. He said ; Do you know why this stick is placed here ? I said: No, by Allah. He said; The Messenger of Allah ﷺ used to put his hand upon it and say: Keep straight and straighten your rows.

This tradition has also ben transmitted by Anas through a different chain of transmitters. This version goes: when the Messenger of Allah ﷺ stood for prayer, he took it (the stick) in his right hand and turning (to the right side) said; keep straight and straighten your rows. He then took it in his left hand and said; keep straight and straighten your rows.

Narrated Abdullah ibn Umar: In the year of Conquest the Messenger of Allah ﷺ recited a verse at which a prostration should be made and all the people prostrated themselves. Some were mounted, and some were prostrating themselves on the ground, and those who were mounted prostrated themselves on their hands.

Narrated Abdullah ibn az-Zubayr: The Messenger of Allah ﷺ gave the decision that the two adversaries should be made to sit in front of the judge.

Narrated Jabir ibn Abdullah: A thief was brought to the Prophet ﷺ. He said: Kill him. The people said: He has committed theft, Messenger of Allah! Then he said: Cut off his hand. So his (right) hand was cut off. He was brought a second time and he said: Kill him. The people said: He has committed theft, Messenger of Allah! Then he said: Cut off his foot. So his (left) foot was cut off. He was brought a third time and he said: Kill him. The people said: He has committed theft, Messenger of Allah! So he said: Cut off his hand. (So his (left) hand was cut off. ) He was brought a fourth time and he said: Kill him. The people said: He has committed theft, Messenger of Allah! So he said: Cut off his foot. So his (right) foot was cut off. He was brought a fifth time and he said: Kill him. So we took him away and killed him. We then dragged him and cast him into a well and threw stones over him.