The Prophet ﷺ said: Set the rows in order, stand shoulder to shoulder, close the gaps, be pliant in the hands of your brethren, and do not leave openings for the devil. If anyone joins up a row, Allah will join him up, but if anyone breaks a row, Allah will cut him off. Abu Dawud said: The name of Abu Shjrah is Kathir b. Murrah.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ أَقِيمُوا الصُّفُوفَ وَحَاذُوا بَيْنَ الْمَنَاكِبِ وَسُدُّوا الْخَلَلَ وَلِينُوا بِأَيْدِي إِخْوَانِكُمْ لَمْ يَقُلْ عِيسَى بِأَيْدِي إِخْوَانِكُمْ وَلاَ تَذَرُوا فُرُجَاتٍ لِلشَّيْطَانِ وَمَنْ وَصَلَ صَفًّا وَصَلَهُ اللَّهُ وَمَنْ قَطَعَ صَفًّا قَطَعَهُ اللَّهُ  

[Machine] The Messenger of Allah ﷺ said: "Straighten your rows, for indeed you are only straightening yourselves with the rows of angels. Draw close together, filling the gaps and do not leave openings for Satan. Whoever joins a row, Allah will join him, and whoever breaks a row, Allah will break him."  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ أَقِيمُوا الصُّفُوفَ فَإِنَّمَا تَصُفُّونَ بِصُفُوفِ الْمَلَائِكَةِ وَحَاذُوا بَيْنَ الْمَنَاكِبِ وَسُدُّوا الْخَلَلَ وَلِينُوا فِي أَيْدِي إِخْوَانِكُمْ وَلَا تَذَرُوا فُرُجَاتٍ لِلشَّيْطَانِ وَمَنْ وَصَلَ صَفًّا وَصَلَهُ اللهُ تَبَارَكَ وَتَعَالَى وَمَنْ قَطَعَ صَفًّا قَطَعَهُ اللهُ تَبَارَكَ وَتَعَالَى  

The Prophet ﷺ said: Set the rows in order, stand shoulder to shoulder, close the gaps, be pliant in the hands of your brethren, and do not leave openings for the devil. If anyone joins up a row, Allah will join him up, but if anyone breaks a row, Allah will cut him off. Abu Dawud said: The name of Abu Shjrah is Kathir b. Murrah. (Using translation from Abū Dāʾūd 666)   

"أقيموا الصُّفوفَ؛ فإِنَّما تَصُفونَ بِصُفُوف المَلَائكَةَ، وحاذُوا بين المنَاكِبِ، وسُدُّوا والخَلَل، وليِنُوا بأيدى إخوانكم، ولا تَذَرُوا فُرُجاتٍ للشَّيطان، ومن وَصَلَ صَفًا وصله اللهُ، ومن قطع صَفًا قطعه اللهُ".