Al Baqarah Ayah 239

فَإِنْ خِفْتُمْ فَرِجَالاً أَوْ رُكْبَانًا‌ۖ فَإِذَآ أَمِنتُمْ فَٱذْكُرُواْ ٱللَّهَ كَمَا عَلَّمَكُم مَّا لَمْ تَكُونُواْ تَعْلَمُونَ ٢٣٩ If you are in danger, pray on foot or while riding. But when you are safe, ?take time to? remember Allah for teaching you what you did not know.