Is it permissible to abort a fetus that has been medically proven to be afflicted with a severe genetic disease that completely affects the motor system of the brain? And does this apply to the possibility of the fetus being a carrier of the disease?

Scholars differ on the ruling concerning abortion before 40 days. The majority view it as prohibited because after conception, the fertilized egg begins to form and prepare for the ensoulment. Therefore, aborting it is akin to killing, and it is not permissible to proceed with it unless the mother's life is in danger. A minority of scholars allowed it with an excuse. The correct view is that held by the majority.

The questioner is advised to put her trust in Allah and be content with His decree, for a believer sees all of Allah's decrees as good, as in the Hadith: "Wondrous is the affair of the believer, for there is nothing but good in all his affairs. If he experiences ease, he gives thanks, and that is good for him. And if he experiences hardship, he shows patience, and that is good for him." Allah may grant the questioner security and make the pregnancy result in a righteous, healthy child. Even if the child is born with a disability, it may be a blessing and a mercy, and a means for expiating sins and raising one's ranks.

The preponderant view is prohibition, and one should not proceed with abortion unless it is confirmed that the fetus is disabled, if that is possible before the forty-day period ends, for abortion after forty days is a grave matter.