How can the authenticity of Hadith be verified, knowing that there is a discrepancy in the numbering of the Hadith "He who purifies himself in his house..." when searching for it in Sahih Muslim (666), despite it being quoted in a previous fatwa?

The tradition of verifying knowledge is one of the paths of the righteous predecessors, and it is a means of protection from error and preservation from mistakes. The common person asks the scholar known for his religiosity and piety about the ruling on his incident, based on the Qur'an and Sunnah. To verify the accuracy of information in fatwas, one can refer to: 1. Sharia computer programs: By entering a part of the transmitted text (hadith, athar, scholar's saying) to search in Sharia books. 2. Printed paper sources: By referring to original books and sources.

Sources of narrations in fatwas: 1. The Holy Qur'an: By mentioning the verse number and surah name. 2. The Noble Hadith: By mentioning the hadith number. We have relied on the most famous editions and the numbering of Professor Muhammad Fuad Abd al-Baqi for most books, and clarified the adopted edition for "Musnad Ahmad". As for the rest of the hadith books, their adopted editions vary, and one can inquire about the adopted edition for a specific hadith. 3. Books of scholars: We strive to quote from the best editions and may specify their names, but variations may occur, and one can inquire about the name of the adopted edition. 4. Accredited websites: We mention the link below the quoted text. 5. "Al-Maktaba Al-Shamilah" program: When the book is only available through it, and we state that if the numbering does not match the printed version.