Salah holds a central place in Islamic worship. This lesson looks at why: what the Qur'an says about prayer, and the shape it gives to a Muslim's day. The Qur'an describes prayer as something decreed for believers at specific times. In Surah An-Nisa, chapter four, verse one hundred and three, an English translation of the meaning reads: “And when you have completed the prayer, remember Allah standing, sitting, or lying on your sides. But when you become secure, re-establish regular prayer. Indeed, prayer has been decreed upon the believers a decree of specified times.” The Qur'an also links prayer directly to good conduct, and to the remembrance of God. In Surah Al-Ankabut, chapter twenty-nine, verse forty-five, the translation reads: “Recite, O Muhammad, what has been revealed to you of the Book and establish prayer. Indeed, prayer prohibits immorality and wrongdoing, and the remembrance of Allah is greater.” Beyond its spiritual weight, Salah gives structure to the day. Five fixed prayer times mean regular pauses for reflection and remembrance, so that worship is not confined to occasional moments. Many Muslims describe this rhythm as one of the things that keeps their faith active from day to day, rather than something they only think about now and then. Salah is also communal where possible. Praying in a group, called jama'ah, at a mosque carries extra reward in most schools of Islamic thought. Praying on your own, though, still fulfils the obligation. So prayer is both a duty set at fixed times and a daily rhythm that keeps faith alive. With that in view, the next step is to learn what makes a prayer valid.