"The Messenger of Allah (ﷺ) used to gently pat our shoulders (to make sure the row was straight) at the time of prayer, and he-would say:'Keep (the rows) straight; do not differ from one another lest your hearts would be afflicted with discord. Let those who are mature and wise stand closest to me, then those who are next to them, then those who are next to them."' Abu Mas'ud said: Today, there is much disharmony among you. ,Abu 'Abdur-Rabin (An-Nasai)said: (One of the narrators) Abu Ma'mar's name is 'Abdullah bin Sakhbarah.
"While I was in the Masjid in the first row, a man pulled me from behind and moved me aside, and took my place. By Allah, I could not focus on my prayer, then when he left I saw that it was Ubayy bin Ka'b. He said: '0 boy, may Allah protect you from harm. This is what the Prophet instructed us to do, to stand directly behind him.' Then he (Ubayy) turned to face the Qiblah and said: 'Doomed are Ah1 Al-'Uqd, by the Lord of the Ka'bah! - three times.'Then he said: 'By Allah, I am not sad for them, but I am sad for the people whom they have misled.' I said: '0 Abu Ya'qub, what do you mean by Ah1 Al-'Uqd?' He said: 'The rulers."'
"The Iqamah for prayer was said, and we stood up and the rows were straightened, before the Messenger of Allah (ﷺ) came out to us. Then the Messenger of Allah (ﷺ) came to us and stood in the place where he prayed, before he said the Takbir he paused and said to us: 'Stay where you are.' So we stayed there, waiting for him, until he came out to us; he had performed Ghusl and his head was dripping with water. Then he said the Takbir and prayed."
"The Messenger of Allah (ﷺ) used to straighten the rows like shaft of an arrow is straightened before the head is attached to it. He saw a man whose chest was sticking out from the row. I saw the Messenger of Allah (ﷺ) say: 'Make your rows straight or Allah will cause your faces to be deformed."
"The Messenger of Allah (ﷺ) used to go between the rows from one side to another, patting our shoulders and chests and saying: 'Do not make your rows ragged or your hearts will be filled with enmity toward one another.' And he used to say: 'Allah and His angels send Salah upon the front rows."'
"The Messenger of Allah (ﷺ) used to gently pat our shoulders (to make sure the row was straight) at the time of prayer, and he would say: 'Keep (the rows) straight; do not differ from one another lest your hearts should suffer from discord. Let those who are mature and wise stand closest to me, then those who are next to them, then those who are next to them."'
"Make your rows straight, make your rows straight, make your rows straight. By the One in Whose Hand is my soul! I can see you behind me as I can see you in front of me."
"The Messenger of Allah (ﷺ)turned to face us when he stood up to pray, before he said the Takbir and said: 'Make your rows straight and come close to one another, for I can see you behind my back."'
"Make your rows solid and close together, and keep your necks in line. By the One in Whose Hand is the soul of Muhammad! I can see the shaitan entering through the gaps in the rows as if they are small sheep."
"The Messenger of Allah (ﷺ) came out to us and said:'Will you not form rows as the angels form rows before their Lord? They said: 'How do the angels form rows before their lord? He said: 'They complete the first row and fill the gaps in the rows."'