The Spoils of War - 8:35 Their prayers in the Ka´bah are nothing but cheating and forbidding. Taste the torment for your disbelief.
How do they observe prayer?
The Women/4:102 And when you are among them and you lead them in prayer, let a group of them be with you to guard you, and let them take their weapons with them. When those who have prayed prostrate, let them stand behind you. Then let the group who have not prayed come and pray with you, and let the group who have finished praying take their weapons and stand guard. The disbelievers hope that you will be careless with your weapons and your belongings so that they may defeat you in a sudden raid. It is permissible for you to leave your weapons because of rain or illness. But be on the alert. Allah has prepared for the disbelievers a humiliating torment.

The Table Spread/5:6 Believers! When you rise for prayer, wash your faces and your hands up to the elbows. Splash your head, and your feet up to the heels, and wash if you have had sexual intercourse. And if you are sick or a traveler, or you have come from the toilet, or you have had sexual intercourse with women and you cannot find water, then turn to a clean piece of earth and rub your face and arms with it. Allah does not wish to cause you any hardship. He only wants to purify you and complete His favor upon you. That you may give thanks.

The Victory/48:29 Muhammad, the Messenger of Allah, and those who are with him are harsh against the disbelievers and merciful among themselves. You see them bowing down and prostrating themselves, asking Allah for His favor and pleasure. On their faces are the marks of prostration. This is their character in the Torah. And in the Gospel they are like a plant that has sprouted and grown strong and thickened and stood up on its stems, delighting the cultivators. He enrages the disbelievers with them. Allah has promised forgiveness and a great reward to those of them who believe and do righteous deeds.

The Jinn/72:18 The masjids belong to Allah alone, so do not call upon anyone besides Allah.

The Cow/2:45 Seek help by enduring hardship (patience) and prayer. Surely this is burdensome to the people, except for those who are reverent.
The Cow/2:238 Pay attention to the prayers, especially the middle prayer. Stand in prayer, giving yourselves wholly to Allah.

The Cattle/6:162 "Say: "My prayer, my worship, my life and my death are for Allah, the Lord of the Universe."

The Night Journey/17:110 "Say: "Whether you call Him Allah or Rahman. Whichever you call Him, all good names are His. "Neither declare nor conceal in your prayer, but take a way between the two."
The Night Journey/17:111 "And say: "To Allah is the praise. He has not begotten children, nor has He a partner in government, nor a helper because of weakness."Glorify Him to the fullest."

Mary/19:31 He has made me blessed wherever I am. As long as I live, He has given me the prayer and the zakat and
Mary/19:32 He commanded me to be kind to my mother. He did not make me a rebellious tyrant.

Ta-Ha/20:14 I, yes, I am Allah; there is no god but Me. Serve Me and observe the prayer in remembrance of Me.
Ta-Ha/20:132 Command your family to pray and emphasize it. We do not expect any sustenance from you. On the contrary, We feed you. The result is for the righteous.

The Pilgrimage/22:41 Those who, when We have made them rulers over the earth, observe the prayer, pay the zakat, enjoin what is good and forbid what is evil. The final decision belongs to Allah.

The Believers/23:9 Those who observe their prayers regularly.

The Ways of Ascent/70:23 Those who do not miss their prayers;
The Ways of Ascent/70:34 They are diligent in their prayers.

The Light/24:37 There are people. Neither business nor commerce prevents them from remembering Allah, observing the prayer and paying the zakat. They fear a Day when hearts and eyes will turn upside down.

The Congregation - Friday/62:9 O you who believe, when you are called to prayer on Friday, hasten to remember Allah and leave the shopping. That is better for you, if you know.

Act of Kindness/107:5 Those who are totally ignorant of their prayers.

The Women/4:43 Believers! Do not stand in prayer while intoxicated until you know what you say, and do not pray until you have washed after sexual intercourse, except for those who are travelers. And if you are sick or a pilgrim, or if one of you has come from the toilet, or if you have had sexual intercourse with women and have not found water, then do tayammum by touching a clean and dry earth and rubbing it on your face and hands. Allah Forgives, Forgives.

The Prophets/21:72 We gave him (Abraham) Isaac and Jacob as a reward, and We made them all righteous.
The Prophets/21:73 We made them leaders guiding by Our command, and We revealed to them how to do good deeds, how to observe the prayer and how to pay the zakat. They were the servants of Us.