Ruling on hair transplants for the beard

It is not permissible to do hair transplants for the beard
unless that is for the purpose of treating a problem and removing a
defect, such as if it was lost or there was some deformity because of
sickness or burns, for example. That is because transplanting hair for the
beard for purposes other than these comes under the heading of changing
the creation of Allah. 

Evidence for the permissibility of using cosmetic means to
remove or correct an acquired defect is to be found in the report narrated
by Abu Dawood (4232), at-Tirmidhi (1770) and an-Nasaa’i (5161) from ‘Abd
ar-Rahmaan ibn Tarafah who said that his grandfather ‘Arfajah ibn As‘ad’s
nose was cut off on the day of (the Battle of) al-Kulaab, and he wore a nose
made of silver, but it began to stink, so the Prophet (blessings and peace
of Allah be upon him) told him to get a nose made of gold. 

The hadeeth was classed as hasan by al-Albaani in Saheeh
Abi Dawood. 

Dr. Saalih ibn Muhammad al-Fawzaan (may Allah preserve him)
said: It seems to me that there are two scenarios with regard to the beard: 

1.

The first scenario is where the growth is naturally sparse,
in which case it is not permissible to increase it by means of hair
transplants for the following reasons: 

(i)What is meant by the command to
let the beard grow is to leave the beard alone and not remove anything from
it by cutting or shaving. There is nothing in that command to indicate that
it is prescribed to increase it by means of hair transplants, and by analogy
it is not prescribed to increase it by means of remedies. In fact it is more
likely that transplants are not allowed because of the side-effects and
complications to which that may lead.

(ii)Doing hair transplants for the
beard when there is no need to do so comes under the heading of changing the
creation of Allah, may He be exalted. Simply wanting to look more handsome
or to look a certain way is not sufficient to make this change permissible.
Moreover, it involves surgery and exposing oneself to side-effects and
complications of this surgical procedure.

2.

The second scenario is where the hair of the beard does not
increase or it falls out because of sickness or an accident. In this case it
seems to me – and Allah knows best – that it is permissible to do a hair
transplant for the beard, because this comes under the heading of medical
treatment and removing defects, especially if that sickness or accident has
left the man looking deformed.

End quote from al-Jarraahah at-Tajmeeliyyah, p. 159 

And Allah knows best.