Is the death of my three children shortly after birth due to consanguinity, the evil eye, or is it a punishment for a sin?

The advice is to be patient and content with God's decree, while asking God to compensate them with good and reward them. God has promised the patient one who loses a child, Paradise and the House of Praise therein. There are Hadith narrations about the virtue of one whose young children die and who remains patient, with a prohibition against grief and discontent. One should not pay attention to the idea that marriage to relatives caused what happened, especially since doctors have not reached conclusive results. Regarding "al-Qata'" (cutting), if the one performing it relies on sound and trustworthy Ruqyah (Islamic exorcism) while observing the শরীʿআ (Islamic law) guidelines, then there is no harm; otherwise, it is not permissible to go to him. What afflicted them might have been due to envy and the evil eye, so they should resort to Ruqyah.