SHAFAQNA – Imam Sadeq (AS) said: Those who mention a time for the appearance of Imam Mahdi (AJ) are liars, we have not allocated a time in the past and will not allocate one in the future [1,2].
[1] Beharul Anwaar, Vol. 52, Page 103
[2] Qaybat by Sheikh Toosi, Hadith 412.
Commentary on Imam Sajjad’s (AS) Treaties of Right (Part 20)