Badhl al-Majhud fi Hall Sunan Abi Dawud () is a comprehensive and detailed arabic commentary on Sunan Abu Dawood, authored by Khalil Ahmad Saharanpuri. Widely acclaimed as the foremost work of its kind, it is esteemed by Islamic scholars worldwide. Completed over a decade in Medina, this book is an indispensable resource for those seeking to understand the nuances of Sunan Abu Dawood. In addition to providing clarification on Sunan Abu Dawood, Saharanpuri's commentary scrutinizes and analyzes narrations and traditions from other hadith books, making it an invaluable reference work. Saharanpuri's commentary is characterized by impartiality and balance, presenting both sides of controversial issues with clarity and objectivity. The author supports his arguments with evidence, without showing any bias towards either perspective, making it a fair and comprehensive analysis of Sunan Abu Dawood and related traditions. Initially, Saharanpuri completed the commentary in five volumes, after which he dictated it to his student Zakariyya Kandhlawi due to his advancing age and tremors. Kandhlawi subsequently published a revised edition spanning 20 volumes, which has been hailed as a seminal contribution to Islamic scholarship. Background Saharanpuri had originally intended to undertake this commentary earlier in his life, but his numerous academic and literary engagements had prevented him from doing so. In his later years, he sought the assistance of his student Zakariyya Kandhlawi to help him complete this monumental task. The first volume was completed in 1917, with Saharanpuri dictating the commentary to Kandhlawi due to tremors in his hands. The teacher and student then journeyed to the Hejaz, where they completed the remaining volumes, including the final part in Medina after ten years of hard work. Saharanpuri's work on the art of Hadith is divided into five volumes, totaling 1938 pages, and provides a detailed list of the sources he used in his research. He consulted works such as Ali al-Qari's Sharh Mishkat, Fathul Bari, Umdatul Qari, and Badai Al-Sana'i to study the words and meanings of hadith, and Taqreeb Al-Tehzeeb, Tehzeeb Al-Tehzeeb, Al-Isaba, and Al-Ansab Li-Sam'ani for information about the men of Hadith. For linguistics, he referenced the dictionary Majma' Bahar Al-Anwar and Lisan Al-Arab. The third edition, with annotations by Kandhlawi and his students Rashid and Roshd, was published in volumes from Egypt and India. Methodology In his book, Saharanpuri presents both sides of any debate with impartiality, providing evidence for each viewpoint without expressing a preference. For instance, he