Ruling on aborting a deformed fetus
Question

                If a fetus is found to have some defects (at about 4.5 months 
of pregrancy), one which includes anencephaly:no brain, and 
the doctors strongly suggest an abortion since the longest an 
anencephalic born baby survived was 21 days and since most 
of such pregnancies end up in miscarriages at a later and 
riskier stage of pregnancies, or still born baby. what is a 
muslim couple to do? especially since consulting two 
knowledgeable islamic scholars each came up with a different 
solution ie one suggesting abortion the other one suggesting 
continuing with pregnancy. The couple had to make a decision 
the soonest possible. what do the laws of islam say?
Praise be to Allah.
If the fetus has reached the age of four months, then the soul has already 
been breathed into it, so deliberately aborting it would be regarded as killing 
a soul - which is a very grave major sin. The doctors' opinion that it is 
malformed is no excuse at all. If it is miscarried or stillborn, or it is born 
alive and dies shortly thereafter, the parents will be rewarded for bearing the 
calamity of their loss, and if it lives and has some kind of disability, they 
will be rewarded for their patience in taking care of it. Everything that 
happens to the believer is good for him, but wilfully destroying a soul is 
nothing but evil and sin. We must also take into consideration the errors 
that may occur in doctors' reports, and that fact that the condition of the 
fetus may change and improve. 
And Allaah knows best.