فَإِذَا قَضَيْتُمُ ٱلصَّلَوٲةَ فَٱذْكُرُواْ ٱللَّهَ قِيَـٰمًا وَقُعُودًا وَعَلَىٰ جُنُوبِكُمْۚ فَإِذَا ٱطْمَأْنَنتُمْ فَأَقِيمُواْ ٱلصَّلَوٲةَۚ إِنَّ ٱلصَّلَوٲةَ كَانَتْ عَلَى ٱلْمُؤْمِنِينَ كِتَـٰبًا مَّوْقُوتًا ١٠٣
When ye have performed the act of worship, remember Allah, standing, sitting and reclining. And when ye are in safety, observe proper worship. Worship at fixed times hath been enjoined on the believers.