4:36Worship God, and ascribe no partners to Him, and be good to the parents, and the relatives, and the orphans, and the poor, and the neighbor next door, and the distant neighbor, and the close associate, and the traveler, and your servants. God does not love the arrogant showoff.

4:43O you who believe! Do not approach the prayer while you are drunk, so that you know what you say; nor after sexual orgasm—unless you are travelling—until you have bathed. If you are sick, or traveling, or one of you comes from the toilet, or you have had intercourse with women, and cannot find water, find clean sand and wipe your faces and your hands with it. God is Pardoning and Forgiving.

4:101When you travel in the land, there is no blame on you for shortening the prayers, if you fear that the disbelievers may harm you. The disbelievers are your manifest enemies.