HAZRAT MAHDI (AS) WILL HAVE THE MOST PROFOUND TAQWA. “HE IS ONE WHO HAS A GREAT FEAR OF ALLAH. HE FEARS ALLAH IN THE SAME WAY THE WINGS OF THE VULTURE TREMBLE.” 

(Al-Burhan fi `Alamat al-Mahdi Akhir al-Zaman, p. 53)


Naim ibn Hammad narrated from Kab. He said:
HAZRAT MAHDI (AS) IS ONE WHO FEARS ALLAH AS THE WINGS OF THE VULTURE TREMBLE.
 
(Hadiths from Jalaluddin al-Suyuti's Classification: Portents of the Mahdi of the End Times, Ali ibn Husamaddin Al Muttaqi, p. 23)