Why? The book is massive. The standard Arabic edition (Dar al-Minhaj) runs over 11 volumes. Translating classical Arabic legal prose, which is dense with chains of reasoning (istidlal) and hypothetical legal scenarios (furu’), is a monumental task. A single page of Arabic can require three pages of English footnotes.
Often published as the first volume of Kitab al-Umm , the Risala is the most famous part of Imam ash-Shafi'i's work and is available in full English translation by scholars like Majid Khadduri . kitab al umm pdf english
Specific sections, such as those concerning "The Pact of Umar" or international law, have been translated for academic purposes and are hosted on university portals like Texas Lutheran University . kitab al umm pdf english