The الصحيفة السجادية: أدعية الإمام زين العابدين عليه السلام is a famous book by Yousef Altabtabai that is available for free on the iPhone. It falls under the Education & Reference category, specifically in the Books subcategory.

The book is a collection of prayers and supplications by Imam Zain al-Abidin, peace be upon him. It is a widely known and respected book among believers. The app allows users to read the book and also provides the option to recite Al Fatiha and dedicate its reward to all believers.

There are a couple of important instructions for using the app. Double-clicking on the screen will hide or show the search and goto feature. Additionally, tapping the screen with two fingers will bring up the bookmark menu.

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