This Tablet is revealed in a mixture of Persian and Arabic.
Certain paragraphs are in Persian and some others in Arabic. It
is printed in Iqtidarát pp 175-191. So it is about 16 pages.
The Tablet is in style of exhortation and admonishment.
Bahá'u'lláh advises him to try more than ever to acquire godly
characters and impress others as an example of how a Bahá'í
should live and behave. Bahá'u'lláh emphasizes that he should
teach Bahá'í way of behavior to other believers and briefly
mentions the virtues and qualities that Bahá'ís should possess.
Since Muhammad Hasan was instructed to return to Persia and to
their family home village (Takur), Bahá'u'lláh asks him to convey
His greetings and exhortations to the believers in that village.
The believers in Takur (many of them relatives of Bahá'u'lláh)
had been severely persecuted. Bahá'u'lláh in this Tablet
addresses them with words of comfort and encouragement. He
emphasizes the point that earthly belongings are not important
and they should not be saddened and grieved if they have lost
their possessions.
Bahá'u'lláh, in this Tablet, specially advises his cousin that he
and other believers should observe caution and discretion in
order to avoid unnecessary persecution and calamities.
Bahá'u'lláh had given seventy Tablets revealed in honor of
various believers in Persia to his cousin to deliver them.
However when Muhammad Hasan arrived in Tehran he was arrested and
imprisoned. He was eventually released from the prison and
returned to Takur. Soon afterwards he passed away in Takur.
According to what Bahá'u'lláh has revealed in another Tablet
(Ishráqát p. 101) one of the women in Takur got hold of those
Tablets and sent them to Sháh Sultán Khánum, half-sister of
Bahá'u'lláh, in Tehran who was a supporter of Azal. Bahá'u'lláh
mentions in this Tablet that most probably either His
half-sister or Azal copied those Tablets and send them out as
their own writings!