Al-An'am - 6:72

وَأَنْ أَقِيمُواْ الصَّلاةَ وَاتَّقُوهُ وَهُوَ الَّذِيَ إِلَيْهِ تُحْشَرُونَ
[6:72]
And that you should keep up prayer and be careful of (your duty to) Him; and He it is to Whom you shall be gathered.
"To establish regular prayers and to fear Allah: for it is to Him that we shall be gathered together."
And to establish worship and be dutiful to Him, and He it is unto Whom ye will be gathered.