The Apostle of God once said: 'Shall I show you a weapon which will save you from your enemies and cause God's providence to flow upon you?' Those who were present said: 'Yes!' He said: 'To call upon your Lord day and night, for the weapon of the believer is supplication.
Bihar al-Anwar, vol. 90, p. 291, Hadith 14.
the appearance of the relief (al-faraj) depends solely upon allah ,therefore those who propose a certain time for it are liars
as to the benefit of my existence in occultation ,it is like the benefit of the sun behind clouds where the eyes do not see,indeed my existence is an amnesty for the people of the earth.
imam Musa Kazim a.s
Physically he (Mahdi ) will be unseen but his remembrance will not be absent from the hearts of the believers and he is the twelfth one from us.
kamaluddin wa tamamun nemah chap 34 ,trad.No.6
a person who would like to be among the companions of qaim should be
in a state of of active waiting and perform all of his deeds with Wara alevel higher than Tawa with the most beautiful etiquette , then one will be counted as being in a state of true awaited person
Imam Sadiq
Biharrul Anvar Volume 52 ,page 140
Imam Hassan Al-Askari (A.S) has said: The signs of a believer are five:
• Performing fifty-one rakats of salat daily,
• Reciting Ziyarat of Arbaeen,
• Wearing a ring in the right hand,
• Placing the forehead on dust [during sajda], and
• Saying "Bismillah al-rahman al-rahim" aloud in salaa.” al-a'mal, p. 589, as stated [by Ibn Tawus]
Imam Hassan Al-Askari (A.S) includes the performance of Ziyarat of Arbaeen as one of the five marks for a believer, in addition to reciting 51 rakats of salat, audible recitation of Bismillah, wearing a ring on one’s right hand and doing sajda on dust.