It is narrated from Sayyiduna Harith Tamimi (may Allah be pleased with him), he says: The Messenger of Allah (peace and blessings be upon him) said to me: When you have performed the morning prayer, before speaking to anyone, recite this supplication seven times: "Allahumma ajirni min an-naar" (O Allah! Save me from the Fire). If you die on that day, Allah Almighty will write for you protection from the Fire. And similarly, when you have performed the Maghrib prayer, before speaking to anyone, recite this supplication seven times: "Allahumma inni as'aluka al-jannah, Allahumma ajirni min an-naar" (O Allah! I ask You for Paradise, O Allah! Save me from the Fire). If you die that night, Allah Almighty will write for you protection from the Fire.