It sits perfectly between beginner and advanced. After completing a short text like Al-Risalah of Ibn Abi Zayd al-Qayrawani, a student moves to Bidayatul Mutafaqqih.
This is a massive open-source Arabic library. You can read the book online or download it as a single file. The text is searchable and often includes takhrīj (authentication of hadith). bidayatul mutafaqqih pdf
Status: Available online, but with caution. It sits perfectly between beginner and advanced
While the specific title Bidayatul Mubtadi is often used interchangeably with the Matan Abi Shuja in various curricula, the text is traditionally attributed to Ahmad ibn al-Husayn al-Isfahani (d. c. 500 AH), famously known as Abi Shuja' al-Isfahani. You can read the book online or download it as a single file
Abi Shuja' composed this work to distill the vast corpus of Shafi’i jurisprudence—which included heavy volumes like Al-Umm by Imam al-Shafi’i and Al-Muhadhdhab by Imam al-Shirazi—into a concise, memorizable format. The title itself, "The Beginning of the Beginner," suggests a deliberate pedagogical intent: to provide a structured entry point that avoids overwhelming the novice with evidentiary disputes, focusing instead on the mu'tamad (relied-upon) positions of the school.