A book in Indonesian confirms that all heresies are forbidden in Islam even if they include a good intention and goal, for they are definitely considered a distortion of Islam.
A book in Indonesian shows the ruling of those totally neglecting prayers in this world and hereafter as in the Quran and Sunnah along with scholars' fatwas.
A book translated into Indonesian quoted from the book "Malady and Remedy" written by Imam Ibn al-Qayyim (may Allah have mercy on him) illustrating the dangers of adultery and ways to it. It also mentions some other sins that may accompany this immorality, penalties, and the last end that waits for those committing adultery.
A book in Indonesian warns us against forbidden heresies that some try to belong to Islam such as the celebration of the birth of the Prophet and half of Shaban month, the Isra and Mi'raj, and the fabricated false commandments, along with other heresies.