المبسوط للسرخسي is an educational book developed by marqoom.org for Android users. The book is authored by Imam Shams al-Aimma Abu Bakr Muhammad ibn Abi Sahl al-Sarakhsi, who wrote it while he was in prison for his students. The book comprises nearly 30 volumes and is a comprehensive guide to Islamic jurisprudence. The book includes a detailed explanation of the Kafi in fiqh according to the Hanafi school of thought. The author also shares his story of being imprisoned for ten years and how he came to write this book. The book is a great source of knowledge for those interested in Islamic studies and is available for free on the Android platform.