As-Salaamu Alaykum, The context of the book is, no doubt, 100 % Saheeh, mashaa Allaah. But, there are more than several misspellings. Likewise, verse 3 in Soorah Aal- Imraan, has not been properly translated, it reads: 'O Allah do not make our hearts go astray after You have guided us and make loved to us our offspring indeed You are the Beloved.' {al-Imran [3]:8} ...'and make loved to us our offspring..' Is wrong. It should read: ...'and grant us mercy from You...' Another mistake is, and Allaah knows best, I will give the author the benefit of the doubt, but what is apparent is it seems like a mistake in Aqeedah [Belief]. And I'm not taking his words out of context either, the author states: 'If for example, someone who sits in front of the television and listens to the news, he forgets to pray and worship Allah, such a person immediately changes from a state of belief to disbelief.' Did not Allaah state: 'Our Lord! Punish us not if we forget or fall into error -[al-Baqarah 2:286] And, didn't the Prophet, sall Allaahu aleyhi wa sallam, state: 'Allaah has forgiven my Nation for mistakes, what they forget, and what they are forced to do.' [Narrated by Ibn Maajah [2043], classed as saheeh by al-Albaani in Saheeh Ibn Maajah.] The other two parts of the booklet by Ibn al-Qayyim and Ibn Taymiyyah are sound. That is all. Wallaahu Alem.