It is recommended to recite Dua al-Ahd every day - ideally after morning prayers - but any time is good.
According to a number of reliable traditions, that person who recites this Dua (Dua al-Ahd) every day continuously for 40 days will have the honour of making ziyarah of Imam al-Hujjah (May our souls be his ransom) during his lifetime, and that if he should die prior to the re-appearance of the Mahdi(AS), he/she will be raised with the Imam (AS), by the command of Allah.
Naturally, this implies a sincere and true recitation, where you really feel for the Imam (AS), his welfare his situation, the situation of the Muslims and other such issues must be at the focus of your mind, and you must be working at your maximum capacity to be close to Allah and the Imam (AS).
May Allah help us all to achieve the grand status of being those who sincerely love and yearn for Imam al-Mahdi (May our souls be his ransom).
May Allah grant us the honour of being among those who are along side the Imam (AS), and those who are martyred at his side. Amen, O Lord of the Worlds!
Dua al-Ahd
O Allah! Lord of The GREAT Light,
Lord of the elevated Throne,
Lord of the tumultuous seas
and the Revealer of the Tawrah, Injeel and Zaboor,
Lord of the shadows and the warmths
and the revealer of the Great Quran.
Lord of the proximate angels
and prophets and messengers.
O Allah!
I beseech Thee, for the sake of Your noble visage
and Your ever existing kingdom,
O ever living
O controller!
I beseech Thee in Your name,
Which lits the heavens and the earths;
and in Your name,
by which the ancient and the latter ones become upright.
O Ever Living who was before every living being.
O Ever Living who shall (exist) after every living being.
O Ever Living who existed when there was no life.
O giver of life to dead.
O One who causes death to the living one.
O Ever Living, there is no God except Thou.
O Allah send blessings to our Master the Leader, the guide.
The Guided, the upriser with Your command.
Blessings of Allah be on him
and his pure forefathers
from all the believing man and believing women.
In the easts of the earth and its wests,
in its plains and its mountains,
its lands and its seas,
from me and my parents.
Blessings which are the weight of Allah's throne and ink of His words,
and whatever His knowledge enumerates and his book encompasses.
O Allah! Renew for him my covenant, pledge and allegiance in my neck in the morning of this day of mine and whatever days (of my life) I live.
I shall never turn away from it nor let it vanish.
O Allah appoint me among his helpers, his aides and his protectors.
Those who hasten to fulfill his commands and obey his orders.
Those who are his supporters and compete with each other to (fulfill) his intention
and seek martyrdom in his presence.
O Allah! If death occurs between me and him (before the reappearance) (Death) which You have made obligatory and decreed for your servants,
then raise me from my grave,
wrapped in my shroud,
my sword unsheathed,
My spear bared,
answering the call of the caller of the caller
in cities as well as deserts.
O Allah! show me the rightly guided face of (Imam (AS)),
the praise worthy moon (referring to the face of Imam (AS))
and enlighten my vision by looking at him.
hasten his reappearance,
make his arrival smooth,
vasten his path,
make me tread on this way
and implement his authority
and strengthen his back.
O Allah inhabit your cities through him and give life to your servants due to him
For surely You have said and Your word is truth,
"corruption will become rampant in land and on sea because of the evil which men's hand have earned"
Then O Allah manifest for us Your slave and the son of your prophet's daughter,
whose name is the same as that of Your messenger,
so that nothing from falsehood is victorious except that he tears them (falsehood) to pieces,
establishes the truth and the truth confirms him.
And O Allah! appoint him as a refuge for your oppressed servants
and a helper for the one who does not find any helper for himself except You
and the renewer of all the laws of Your book
which have been tampered with
and the rebuilder of the science of Your religion
and the traditions of Your prophet
peace of Allah be on him and his progeny
And O Allah make him among those whom you have protected
from the evils of the adversaries.
O Allah! and provide joy to your Prophet Mohammad
peace of Allah be on him and his progeny
by his vision
and (the vision of) the one who follows him on his call.
O Allah remove this sorrow (of occultation) from this nation
with his presence and hasten for us his reappearance.
They (the disbelievers) consider it to be distant
while we consider it to be near.
For the sake of Your Mercy, O the Most Merciful of all Mercifuls.
[Repeat this three times - or as many times as possible]
HASTEN! HASTEN! O MY MASTER, O MASTER OF THE ERA