The hadith of the man who prayed badly (hadith al-musi' salatahu) is a famous hadith, constantly cited by jurists, who derived many rulings of prayer from it because it contains a complete description of the prayer. A hadith that is a pillar of prayer in the Sunnah deserves to be studied from every angle.
The author has therefore gathered its chains, traced its wordings and documented it from all its sources, collecting all its benefits and gems and quoting the comments and findings of the scholars — sparing the researcher and the reader the effort of tracing this hadith themselves.