August 29

So it was established and proven that the assassin had on his own responsibility engaged in this grievous action and monstrous deed with the idea and design of taking blood revenge for his Master, and that it concerned no one else. And when the truth of the matter became evident the innocence of Bahá’u’lláh from this suspicion was established in such wise that no doubt remained for anyone; the decision of the court declared His purity and freedom from this charge; and it became apparent and clear that what had been done with regard to Him was due to the efforts of His foes and the hasty folly of the Hajíbu’d-Dawlih. Therefore did the government of eternal duration desire to restore certain properties and estates which had been confiscated, that thereby it might pacify Him. But since the chief part of these was lost and only an inconsiderable portion was forthcoming, none came forward to claim them. Indeed Bahá’u’lláh requested permission to withdraw to the Supreme Shrines [1] [of Karbilá and Najaf] and, after some months, by the royal permission and with the leave of the Prime Minister, set out accompanied by one of the King’s messengers for the Shrines. 
- ‘Abdu’l-Baha  (‘A Traveler’s Narrative’)
[1] Atabát ‘Alíyat, literally Supreme Shrines, a term by which the Shí’ih Muslims referred to the cities of Kazímayn, Najaf, and Karbilá and generally applied to the region of eastern ‘Iráq, of which Baghdád was the center. When Bahá’u’lláh was released from prison and banished from Persia, He chose Baghdád for the place of His exile.