al-Majmu' Sharh al-Muhadhab المجموع شرح المهذب is a comprehensive manual of Islamic law according to the Shafi'i school. The original book, al-Muhadhdhab was written by the Great Imam al-Shayrazi which Imam Nawawi took and explained it naming it al-Majmu' Sharh Al-Muhadhdhab.
Unfortunately, Imam Nawawi never completed the book and thus passes away after he finished the 'Ibada (worship) section. Then came Shaykhal Islam, al-Imam Taqiyu Deen 'Aliy as-Subki, who took the task to complete the book where Imam Nawawi left off. But unfortunately he did not finish it either. Then came Shaykh Muhammad Najib al-Mudi'i who started where Imam Subki left off and he completed this work in 1925.
Ustadh al-Mudi'i has used and followed the same system employed by Imam Nawawi when explaining the book which was consequently done by Imam as-Subki as well.  This is the hand-written manuscript of the book which is printed on yellow paper in 10 volumes.