Chapter 1 Introduction Discipline problem is a branch of disobedience committed by a person during his early age was schooling. So evil must be avoided so as not to be a dangerous disease in the community. Allah has recorded in the Qur'an, which means, "You are the best 'Ummah ever raised for mankind. You bid the fair and forbid the unfair, and you believe in Allah. If the people of the Book believed limit, it would have been better for prototypes. Azizuzanadi prototypes, there are believers, while Most of prototypes are sinners. " (Surah Ali Imran: 110). Amar is right, and good and prohibit evil also is an indicator of things to be a Muslim faith stated in a hadith which means "Those of you who see evil, let him change it with his hand. If not able, to be with verbal (mouth). If not able, to be with her (which happens to hate evil) and that weakest of faith "(Hadith narrated by Muslim). There are several types of discipline problems in schools are often done by students regardless of background. Among them are coming late to school, truancy, vandalism and other disciplinary problems (Khalim Zainal, Rohani Ahmad Tarmizi, Zakaria Kasa, Mizan Adiliah Ahmad Ibrahim, 2007). Principal or Headmaster always take the necessary action in order to curb indiscipline among students (Student Misconduct Report, 1994/95). Rules and penalties prescribed by the Ministry of Education as a guide when implementing discipline supervision (Cabinet Committee Report, 1979). Several Researchers are also studying ways to curb indiscipline among Penalty System Program (Khalim Zainal, Rohani Ahmad Tarmizi, Zakaria Kasa, Mizan Adiliah Ahmad Ibrahim, 2007). According to the Department of Statistics Malaysia resources, discipline problems in schools referred to as serious juvenile increased from year 2000 to 2004. Thus the problem of student discipline or juvenile should be referred to the source of the Quran and Hadith. In the year 10 AH when do Hujjatul Wada ', the Prophet delivered his last sermon (Khutbah Farewell). Among the last will of the Prophet, "I leave behind me two things that if you uphold and follow these, you will never go astray.'s Al-Quran and Sunnah." Purpose of research All the available evidence in the Qur'an is true. All the available evidence in the Qur'an to mankind adopted by both the Muslims and non-Muslims. So my purpose of this research are : i. I would like to know the extent of the truth of this verse of the Quran when applied to Muslim students of SMK Kepong Baru in the evening session. ii. I would like to know whether the verses of the Qur'an can be used as an instrument to control the behavior and discipline of Muslim students of SMK Kepong Baru located in afternoon session. iii. I want to know the changes in behavior or discipline SMK Kepong Baru Muslim students who are in the afternoon session after the program was conducted congregational prayer. This study is important for Muslims in accordance with the purpose of the Qur'an was revealed and the Sunnah of the Prophet Muhammad as a guide all Muslims. Allah Almighty says in the Holy Koran, “ There is no doubt whatever (should come from God and on completion); it is guidance for those that (evil) “(Al-Baqarah: verse 2). In addition, the study is also important for Muslims living theory outlined by Allah. Research Questions I am a Muslim teacher who taught at SMK Kepong Baru. Muslim students of SMK Kepong Baru in the afternoon session with discipline problems such as stealing money or other items at school. This is a serious problem. Students involved are often called by their teachers to be given disciplinary punishment but still remain the same offense under. I think this is a negative habit that stems from the soul and heart problems. Troubled heart will be intending to do things that are sinful. Prophet Muhammad has said, which means "All actions depends on intent, and (return) per person (subject) what is meant; Anyone migration intentions for the world that want to achieve or for women who want to marry, his emigration was for what he intended . "[Reported by al-Bukhari]. Prophet Muhammad also said, which means "Truly in the body there is a piece of meat, when a piece of meat is good, then everything will be good, and when a piece of meat is bad, it will be all evil, know that it is a piece of meat heart. "(Narrated by Al-Bukhari and Muslim). All things associated with the soul and heart problems must be treated and purified by the methods of those who has a way of Islam. By the prayers of the program of the school also is one way to cleanse the liver of dark spots on the sin he has committed. Prophet Muhammad has said, which means "Verily the believers, when doing a sin, a black spot forms on his heart. When he repents, then stop and pray for his sins, then clean of the black spots. And when he is in sin, rose black spot on his heart, closed up around him, and it is rust called Allah in His Book: Once in a while is not, in fact what they did was rusted (close) their hearts. Surah Al-Mutoffifin verse 14. "(Hadith narrated by Al-Baihaqi). Therefore I would like to know: 1. Do they also do prayers at home? 2. How their attitudes at home with your family? 3. Do they feel should be taught to perform prayer in school? 4. How the development of school discipline throughout the program is adjusted prayers? Significance of study This study is very important to do because of misconduct committed by Muslim students of SMK Kepong Baru in the afternoon session of stealing someone else's property, including money always happen every year. Initiatives have been undertaken by the religious teachers who teach Islamic education there in the afternoon session Ustazah Rohana. He has done several programs that involve filling the soul and the heart, including prayers for the Muslim students at the evening session. Thus the study wanted to see the effectiveness of prayers arranged for students systematically change the behavior of students to become better and those who believe and do righteous deeds. Allah says which means "Read and follow you (O Muhammad) what is revealed to you from the Qur'an, and establish the prayer (with diligence), for prayer restrains from shameful and evil, and certainly the remembrance of Allah is the greatest (and effect) and (remember) Allah knows what you do. (al-Ankabut; 45) Prophet Muhammad was said, which means "not going to steal a thief, if he steals the moment he believes. would not commit adultery adulterer, if when he believed he was committing adultery. would not drink alcohol a wine drinker, if when he was drinking was a believer. "(Hadith narrated by Bukhari and Muslim) And the importance of this work because we want to see prayers that have been programmed for the students be an important instrument in the development of student discipline. Finally this study will be done to see to what extent the Muslim students make prayer as a way of life. as Allah Almighty says in the Quran "Say: Truly my prayer and my service of sacrifice, my life and my death, are all for Allah and Sustainer of the Worlds. "(al-Ana'am; 162)