"Whoever completes a row, may Allah be generous to him, and whoever cuts a row, may Allah cut him off."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ وَصَلَ صَفًّا وَصَلَهُ اللَّهُ وَمَنْ قَطَعَ صَفًّا قَطَعَهُ اللَّهُ ﷻ