Sharah Sahih Muslim, Nawawi :Not to travel except for three mosques

Imam Nawawi write in Sharah of hadith ‘Not to travel (for visiting) except for three mosques (Bukhari Volume 003, Book 029, Hadith Number 087)’ the true meaning of hadith, He (Nawawi) Write: In this haidth the Three Mosques status and thier high status as compaired to other mosques in the world is mentioned, because these are mosques of the Prophets (may Peace Be Upon Him) and this is why offering salat in them has greater blessing. (he writes more that many ulemas have different viewpoint regarding going to Graves and going to these three Mosques) Near our Masters (i.e Shafi’I) right Concept is that those to whom Imam al-Harmain (Abu al-Mali Abdul Malik al-Jiyoni) and other researches of islam have permitted for them its neither Haram not Makruh to visit grave (qaboor) for Ziyarah, According to them it means that to go for a journey for Sawab having intentions of complete and utmost blessing is only permissible for these three mosques. [Sharah Sahih Muslim, Nawawi, Volume 009, Page No. 106]