Answer: From the Noble Qur’an, as Allah Almighty says: {Indeed, this Qur’an guides to what is most upright.} [Surat al-Isrā’: 9] And from the Prophetic Sunnah as the Prophet (may Allah's peace and blessings be upon him) said: "Verily, I was sent to make perfect righteous morals." [Narrated by Ahmad]