Abu Mas'ud reported
The Messenger of Allah (may peace he upon him) used to touch our shoulders in prayer and say: Keep straight, don't be irregular, for there would be dissension in your hearts. Let those of you who are sedate and prudent be near me, then those who are next to them, then those who are next to them. Abu Mas'ud said: Now-a-days there is much dissension amongst you.
This hadith is narrated by Ibn Uyaina with the same chain of transmitters.
Abdullah b. Mas'ud reported
The Messenger of Allah (ﷺ) said: Let those who are sedate and prudent be near me, then those who are next to them (saying it tliree tinies), and beware of the tumult of the markets.
Anas b. Malik reported
The Messenger of Allah (ﷺ) said: Straighten your rows. for the straightening of a row is a part of the perfection of prayer.
Anas b. Malik reported
The Messenger of Allah (ﷺ) said: Complete the rows, for I can see you behind my back.
Hammam b. Munabbih reported
This is what was transmitted to us by Abu Huraira from the Messenger of Allah (ﷺ) and, while making a mention of a few ahadith, said: (The Messengerof Allah directed us thus): Establish rows in prayer, for the making of a row (straight) is one of the merits of prayer.
Nu'man b. Bashir reported
I heard the Messenger of Allah (ﷺ) say: Straighten your rows, or Allah would create dissension amongst you.
Nu'man b. Bashir reported
The Messenger of Allah (may peace-be upon him) used to straighten our rows as it lie were straightening an arrow with their help until be saw that we had learnt it from him. One day he came out, stood up (for prayer) and was about to say: Allah is the Greatest, when he saw a man, whose chest was bulging out from the row, so he said: Servants of Allah, you hint straighten your rows or Allah would create dissension amongst you.
Abu 'Awana reported this hadith with the same chain of transmitters.
Abu Huraira reported
The Messenger of Allah (ﷺ) said: If the people were to know what excellence is there in the Adhan and in the first row, and they could not (get these opportunities) except by drawing lots, they would have definitely done that. And if they were to know what excellence lies in joining the prayer in the first takbir (prayer), they would have vied with one another. And if they were to know what excellence lies in the night prayer and morning prayer, they would have definitely come even if crawling (on their knees).
Abu Sa'id al-Khudri reported
The Messenger of Allah (ﷺ) saw (a tendency ) among his Companions to go to the back, so he said to them: Come forward and follow my lead, and let those who come after you follow your lead. People will continue to keep back till Allah will put them at the back.
Abu Sa'id al-Khudri reported
The Messenger of Allah (ﷺ) saw people at the end of the mosque, and then the (above-mentioned hadith) was narrated.
Abu Huraira reported
The Messenger of Allah (ﷺ) said: If you were to know, or if they were to know, what (excellence) lies in the first rows, there would have been drawing of lots (for filling them) ; and Ibn Harb said: For (occupying) the first row there would have been drawing of lots.
It was narrated from Abu Huraira that the Messenger of Allah (ﷺ) said
The best rows for men are the first rows, and the worst ones the last ones, and the best rows for women are the last ones and the worst ones for them are the first ones.
This hadith is narrated by Suhail with the same chain of transmitters.