On one of our visits to Iraq, we were sitting with a group of clergymen and theologians after the dusk and nigh prayers on the grounds of the mausoleum of His Holiness the Commander of the Faithful ('a). When the discussion was over and the men wanted to leave, they looked up at the timepiece and noticed a discrepancy in time. The clock of the mausoleum of Hadrat 'Ali ('a) that was in Arabic digits, showed that it was 2.30 A.M. (past midnight) that differed by five to seven minutes with the watches of the men. Right then the Imam entered the grounds from the door facing the 'Qiblah' direction of prayer. One of the teachers of Najaf who was present asked that they adjust their watches as it was now exactly 2.30 A.M. past midnight and that it was then thirteen years (thirteenth year of the Imam's stay in Najaf) since the Imam entered the grounds of the mausoleum every night at precisely the same time.[1]
[1]Discipline in the Imam's visits to the mausoleum: Sayyid 'Abd al-Majid Iravani