Hazrat Mahdi (as) will grow older in years along with everyone else. But he will always remain youthful in appearance. He will always have the appearance of a man of around 40. The reason why the hadith draws attention to his youthful appearance as a distinguishing feature is that people will age quickly in the End Times. Indeed, in the End Times in which we are living, it is notable how many young people undergo a rapid physical collapse. Many young people develop wrinkly skin very early, with lines constantly developing around their eyes and signs of aging rapidly manifesting themselves. Allah will preserve Hazrat Mahdi’s (as) youthful appearance, and he will look 40 even in advanced years.
|And ONE OF HIS [HAZRAT MAHDI’S (AS)] SIGNS IS THAT HE WILL NOT AGE WITH THE PASSAGE OF DAYS AND NIGHTS. (Lutfullah Saafi Gulpaygani, Muntakhab al-Asar Fee Al Imam al-Saani al-Ashar, p. 285)|
All the information given in the hadiths is highly detailed. Nobody else is described in such detail in the hadiths of the Prophet (saas). The fact that, like all the information provided about the life of Hazrat Mahdi (as), all the characteristics of his physical appearance are so distinguishing is an important sign and also a blessing for all Muslims awaiting him with great love and excitement and who are eager to be able to recognize him.
Together with all the other signs we are given, such as the fact that Hazrat Mahdi (as) will assume the spiritual leadership of all Muslims by being instrumental in unifying the Islamic world, that he will establish Islamic moral values on the world by neutralizing irreligious ideologies, that he will perform the prayer (salat) with the Prophet Jesus (as) and be a means whereby the whole Christian world turns to Islam, a consideration of all the details in his physical appearance will leave no room for doubt as to the identity of Hazrat Mahdi (as) when, by Allah’s leave, he appears.