Hazrat Azraq bin Qais narrates that he saw Sayyiduna Abu Barzah Aslami (may Allah be pleased with him) performing prayer while holding the reins of his mount in his hand. When he bowed for ruku‘, the reins slipped from his hand and the mount started to move. So Sayyiduna Abu Barzah (may Allah be pleased with him) walked backwards, without turning his attention here or there, until he caught up with his mount and took hold of it. Then, in that same state, he walked back to his place of prayer and completed his prayer, ending with salam. Then he said: Indeed, I have participated in many battles with the Messenger of Allah (peace and blessings be upon him). He counted many battles and said: I have seen the concessions and eases of the Prophet (peace and blessings be upon him), and this concession (walking during prayer when needed) I have taken from among them. And if I had left my mount like that until it reached the wilderness, and then I, being an old man, had to search for it in the darkness of the night, it would have been very difficult and burdensome for me.

Sayyiduna Anas bin Malik Ansari رضي الله عنه narrates: While the Muslims were performing the Fajr prayer on Monday and Sayyiduna Abu Bakr رضي الله عنه was leading them in congregation, suddenly the Messenger of Allah صلى الله عليه وسلم appeared before them. He صلى الله عليه وسلم lifted the curtain of the chamber of Sayyidah Aisha رضي الله عنها and saw the companions standing in rows, praying. (Upon seeing this scene) he صلى الله عليه وسلم smiled broadly. Sayyiduna Abu Bakr رضي الله عنه began to step back, intending to join the row, thinking that the Messenger of Allah صلى الله عليه وسلم wished to come out for prayer. But the Messenger of Allah صلى الله عليه وسلم signaled to him with his blessed hand to complete the prayer.

And the evidence against the statement of those who claim that this action invalidates the prayer of the one praying, and claim that this is an act not permissible in prayer, is their ignorance of the Sunnah of the Prophet, peace and blessings be upon him.

Sayyiduna Abu Qatadah (may Allah be pleased with him) narrates that I saw the Noble Prophet (peace and blessings of Allah be upon him) leading the people in prayer while Umamah, the daughter of Lady Zainab, was riding on his shoulder. When he (peace be upon him) would bow for ruku, he would put her down, and when he would raise his head from prostration, he would seat her again on his shoulder.

Contrary to the claim of the person who says that by killing them, and by killing each one of them, the prayer becomes invalid.

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) commanded to kill two black things—the scorpion and the snake—during prayer. In the hadith of Janab Ghundar, Mu'ammar says: I asked him about the two black things, so he replied: the scorpion and the snake. And in the hadith of Janab Abdul A'la, Yahya says: that is, what is meant are the snake and the scorpion.

In the narration of Sayyiduna Sahl bin Sa’d (may Allah be pleased with him), it is mentioned that Sayyiduna Abu Bakr (may Allah be pleased with him) would not look here and there during the prayer. Then, when the people clapped excessively, he turned his attention and saw the Messenger of Allah (peace and blessings of Allah be upon him) seated in the row. So the Messenger of Allah (peace and blessings of Allah be upon him) signaled to him to continue the prayer. I have already mentioned this narration in full before.

Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) used to glance to the right and left in his prayer, but he (peace be upon him) would not turn his neck backwards.

Whether they are performing their prayer completely and correctly or not? So that after the completion of the prayer, he can inform them of the necessary issues regarding the completion of the prayer.

Sayyiduna Ali bin Shiban (may Allah be pleased with him), who was a member of the delegation, narrates that I prayed behind the Prophet Muhammad (peace and blessings be upon him), and he saw with the corner of his eye a man who was not straightening his back in bowing and prostration.