Compiler: Imam Abu Abdullah Muhammad ibn Ismail al-Bukhari. Total Hadith: 7563. Sahih al-Bukhari is widely regarded as the most authentic hadith collection and many scholars consider it the most reliable book after the Holy Quran. Imam Bukhari dedicated immense effort to compile this collection with the highest standards of verification.

Compiler: Imam Abul Husayn Muslim ibn al-Hajjaj an-Naysaburi. Total Hadith: 7558. Sahih Muslim ranks among the most authentic hadith collections, second only to Sahih al-Bukhari. Imam Muslim organized hadith by grouping all versions of the same narration in one place while carefully preserving each narrator's exact wording.

Compiler: Imam Abu Abdur Rahman Ahmad ibn Shu'ayb an-Nasa'i. Total Hadith: 5758. Sunan an-Nasa'i is one of the six major hadith collections compiled after Imam Nasa'i traveled extensively across Arab lands to gather authentic narrations. This book is the result of his tireless research and dedication to preserving prophetic traditions.

Compiler: Imam Abu Dawud Sulayman ibn al-Ash'ath. Total Hadith: 5274. Sunan Abu Dawud focuses on hadith related to Islamic rulings and daily life practices. Imam Abu Dawud arranged the book like a fiqh manual and selected approximately five thousand hadith from five hundred thousand after careful examination.

Compiler: Imam Hafiz Muhammad ibn Isa at-Tirmidhi. Total Hadith: 3956. This collection is known by two names: Jami at-Tirmidhi and Sunan at-Tirmidhi with the first name being more common among scholars. The book contains both authentic and weak hadith with Imam Tirmidhi often noting the status of each narration.

Compiler: Imam Abu Abdullah Muhammad ibn Yazid ibn Majah al-Qazwini. Total Hadith: 4341. Sunan Ibn Majah is one of the six major hadith collections covering a wide range of topics including Islamic beliefs, worship practices and legal rulings. The book is organized into more than 37 chapters with each focusing on a specific subject.