Straightening the Rows in Prayer
Nu’man bin Bashir (radi Allahu anhum) reported that the Messenger of Allah (sal Allahu alaihi wa sallam) said, “Straighten your rows (during prayer) or Allah would create dissension amongst you”.
[Sahih Al-Bukhari and Muslim]
In another narration reported by Muslim, Nu’man bin Bashir (radi Allahu anhum) narrated: The Messenger of Allah (sal Allahu alaihi wa sallam) used to straighten our rows, as if he was straightening an arrow with their help until he saw that we had learnt it from him. One day he came out, stood up (for prayer) and was about to say: Allahu Akbar (Allah is the Greatest), (marking the beginning of the prayer) when he saw a man, whose chest was bulging out from the row. He said, “Slaves of Allah, you must straighten your rows or Allah would create dissension amongst you.”
The real meaning of this saying is that Allah will create dissension and conflict among you. In any case, this Hadith makes abundantly clear the importance of setting the rows in congregational Salat to which the present-day Muslims do not pay much attention. Because of the lack of understanding of Islamic principles, no one pays heed to the proper formation of rows in mosques in congregational Salat.
And Allah Knows Best!