My father doubted.

Sa'id ibn AbuSa'id al-Maqburi reported on the authority of his father that he saw AbuRafi' the freed slave of the Prophet (ﷺ), passing by Hasan ibn Ali (Allah be pleased with them) when he was standing offering his prayer. He had tied the back knot of his hair. AbuRafi' untied it. Hasan turned to him with anger, AbuRafi' said to him: Concentrate on your prayer and do not be angry: I heard the Messenger of Allah (ﷺ) say: This is the seat of the devil, referring to the back knot of the hair.

Kurayb the freed slave of Ibn Abbas reported: Abdullah ibn Abbas saw Abdullah ibn al-Harith praying having the back knot of the hair. He stood behind him and began to untie it. He remained standing unmoved (stationary). When he finished his prayer he came to Ibn Abbas and said to him: What were you doing with my head? He said: I heard the Messenger of Allah (ﷺ) say: A man who prays with the black knot of hair tied is the one praying pinioned.

I saw the Prophet (ﷺ) praying on the day of the conquest of Mecca and he had placed his shoe at his left side.

‘Abd Allah b. al-Sa’ib said; the Messenger of Allah (ﷺ) led us in the morning prayer at Mecca. He began to recite Surah al-Mu;minin and while he came to description of Moses and Aaron or the description of Moses and Jesus the narrator Ibn ‘Abbad doubts or other narrators differed amongst themselves on this word the prophet (ﷺ) coughed and gave up (recitation) and then bowed ‘Abd Allah b. al-Sa’ib was present seeing all this incident.

While the Messenger of Allah (ﷺ) was leading his Companions in prayer, he took off his sandals and laid them on his left side; so when the people saw this, they removed their sandals. When the Messenger of Allah (ﷺ) finished his prayer, he asked: What made you remove your sandals? The replied: We saw you remove your sandals, so we removed our sandals.

The Messenger of Allah (ﷺ) then said: Gabriel came to me and informed me that there was filth in them. When any of you comes to the mosque, he should see; if he finds filth on his sandals, he should wipe it off and pray in them.

This tradition has also been transmitted through a chain by Bakr b. ‘Abd Allah. This version has the word Khubuth (filth) and in two places the word Khubuthan (filth).

The Messenger of Allah (ﷺ) said: Act differently from the Jews, for they do not pray in their sandals or their shoes.

I saw the Messenger of Allah (ﷺ) praying both barefooted and wearing sandals.

The Prophet (ﷺ) said: When any of you prays, he should not place his sandals on his right side or on his left so as to be on the right side of someone else, unless no one is at his left, but should place them between his feet.

when any of you prays and takes off his sandals, he should not harm anyone by them. He should place them between his feet or pray with them on

the Messenger of Allah (ﷺ) used to pray while. I was by his side in the state of menstruation. Sometime his cloth would touch me when he prostrated. He would pray on a small mat.

A man from the Ansar said: I am a corpulent man-and he was (actually) a fat man; I cannot pray along with you. He prepared food for him and invited him to his house. (he said) (please) pray (here) so that I may see how you pray, and then I would follow you. They (the people) washed one side of their mat. He (the prophet) then got up and prayed two Rak’ahs. Ibn al-Jarud asked Anas b. Malik: would he (the prophet) say the forenoon prayer? He replied: I did not see him offering this prayer except that day.

Anas b. Malik said; the prophet (ﷺ) used to visit Umm Sulaim. Sometimes the time for prayer would come and he would pray on out carpet that was really a mat. She (Umm Sulaim) used to wash it with water.

The Messenger of Allah (ﷺ) used to pray on a mat and on a tanned skin.

we used to pray along with the Messenger of Allah (ﷺ) in intense heat. When any of us could not rest his face on bare ground while prostrating due to intense heat he spread his cloth and would prostrate on it.

Why do you stand in rows as the angels do in the presence of their Lord? We asked: how do the angles stand in rows in the presence of their Lord? He replied: they make the first row complete and keep close together in the row.

the Messenger of Allah (ﷺ) paid attention to the people and said three times; straighten your rows (in prayer); by Allah, you must straighten your rows, or Allah will certainly put your faces in contrary directions. I then saw that every person stood in prayer keeping his shoulder close to that of the other, and his knee close to that of the other, and his ankle close to that of the other.

the prophet (ﷺ) used to straighten us in the rows of prayer as the arrow is straightened, until he thought that we had learned it from him and understood it. One day he turned towards us, and shoulders in order, and say; Do not be irregular. And he would say: Allah and his Angels bless those who near the first rows.

The Messenger of Allah (ﷺ) used to pass through the row from one side to the other; he used to set out chests and shoulders in order, and say: Do not be irregular. And he would say: Allah and His angels bless those who are near the first rows.