Arabic (Original)
و قَالَ لَوْ يَعْلَمُ النَّاسُ مَا لَهُمْ فِي النِّدَاءِ وَالصَّفِّ ثُمَّ لَمْ يَجِدُوا إِلَّا أَنْ يَسْتَهِمُوا عَلَيْهِ لَاسْتَهَمُوا وَلَوْ يَعْلَمُونَ مَا فِي التَّهْجِيرِ لَاسْتَبَقُوا إِلَيْهِ وَلَوْ عَلِمُوا مَا فِي الْعَتَمَةِ وَالصُّبْحِ لَأَتَوْهُمَا وَلَوْ حَبْوًا.
English Translation
The Messenger of Allah (peace be upon him) said: 'When one of you prays, let him not interlock his fingers, for interlocking (the fingers) is from the Shaytan. And one of you is still in prayer as long as he is in the mosque until he leaves.'