Hazrat Mahdi (as) will Restore and Beautify the World

NOWHERE IN THE WORLD WILL REMAIN DEVASTATED, AND HAZRAT MAHDI (AS) WILL REPAIR AND RESTORE ALL PLACES.  (Al-Mahdi Al-Mawud, Vol. 1, p. 264)

Hazrat Mahdi (as) who will appear is from the line of Hazrat Ali (ra). HE WILL BEAUTIFY THE WORLD AS NEVER BEFORE... (Sheikh Muhammad ibn Ibrahim Numani, al-Ghaybah al-Numani p. 169)