August 6

About two months after Our arrival in ‘Iráq, following the command of His Majesty the Sháh of Persia—may God assist him—Mírzá Yaḥyá joined Us. We said unto him: “In accordance with the Royal command We have been sent unto this place. It is advisable for thee to remain in Persia. We will send Our brother, Mírzá Músá, to some other place. As your names have not been mentioned in the Royal decree, you can arise and render some service.” Subsequently, this Wronged One departed from Baghdád, and for two years withdrew from the world. Upon Our return, We found that he had not left, and had postponed his departure. This Wronged One was greatly saddened. 
- Baha’u’llah  (‘Epistle to the Son of the Wolf’)