113. This was to urge Salat at three times, that is, morning, evening and Isha. This shows that this was revealed before Salat had been made obligatory five times a day during the Miraj. (For explanation, see (E.N. 95 of Surah Al-Isra), (E.N. 111 of Surah Taha), and (E.N. 124 of Surah Ar-Room)).
114. This is the remedy for eradicating evil from the world: Do good deeds and defeat evil with them. The best way of making you virtuous is to establish salat, which will remind you of Allah over and over again: which will produce those good characteristics in you that shall help you fight successfully against the systematic and united front of evil that has been formed against the mission of the truth. This will also enable you to establish practically the system of virtue and reform. (For explanation see (E.Ns 77-79 of Surah Al-Ankaboot)).