Kitab Al-Marasil - Imam Abu Dawud al-Sijistani

In this book Abu Dawud, may Allah have mercy on him, collected only Mursal Ahadith that he had come across.

Abu Dawud arranged the Ahadith he cited according to the jurisprudential Chapters.

Most of the Ahadith mentioned by Abu Dawud in the book are authentically attributed to the narrator who had transmitted them. It is most likely that he included in this book most of the Mursal Ahadith that reached him. There are 544 Hadith in the book. 

Verified from manuscript, some of the Harakat, with the referencement and authentication by Shaykh Shu'ayb al-Arnaoot.