الاستيعاب في معرفة الأصحاب is a book by Ibn Abdul Barr), which is considered one of the earliest books written about the Companions of the Prophet Muhammad. The author's approach in the book was to mention the Companion and who narrated from him, as well as some matters related to his life, death, and age.

In the introduction of the book, Ibn Abdul Barr stated that the study of the Sunnah of the Prophet Muhammad, after the Quran, is the most important subject for students and scholars. The Sunnah is the foundation of what Allah wants from His people, and it is the guide to the straight path. Therefore, knowing the Companions who conveyed the Sunnah from the Prophet Muhammad to the people is essential for understanding and preserving the Sunnah. The Companions were the best of generations and the best nation produced for mankind.

This book is an excellent resource for those who want to learn about the Companions of the Prophet Muhammad and their contributions to Islam. It is available for free on the Android platform, and it is a great addition to the Education & Reference category, specifically the Books subcategory.