(Al Qur’an, 2:185)
O People! Indeed your souls are dependant on your deeds, free it with Istaghfar (repentance) lighten its loads by long prostrations (sajda); and know that Allah swears by his might: That there is no punishment for the one who prays and prostrates and he shall have no fear of the fire on the day or Judgment. The one who spreads his kindness, Allah will spread His mercy over him on the day of Judgment. Who so ever performs a recommended prayer in this month Allah will keep the fire of hell away from him. Whoever performs an obligator prayer Allah will reward him with seventy prayers (worth) in this month. Who ever prays a lot during this month will have his load lightened on the day of Judgment. He who recites one verse of the Holy Qur’an will be given the rewards of reciting the whole Qur’an during other months.
O People! Indeed during this month the doors of heaven are open, therefore ask Allah not to close them for you; The doors of hell are closed, so ask Allah to keep them closed for you. During this month Shaitaan (Satan) is imprisoned so ask your Lord not to let him have power over you.
(Source: The Prophet's Sermon)