Is it obligatory to continue a scientific research that requires clarifying aspects of justice in man-made law, even though that might lead to speaking about God without knowledge?

Studying man-made laws is permissible if the purpose is to demonstrate the virtue of Islamic Sharia, to clarify the contradiction and injustice of these laws, or to benefit from them in ways that do not contradict Sharia, provided that the student is scientifically and intellectually qualified and possesses Islamic immunity.

As for speaking about Allah without knowledge, it is one of the greatest major sins. Allah has ordered prohibitions, making speaking about Him without knowledge more forbidden than indecencies, sin, injustice, and polytheism. It is absolutely forbidden in all divine laws and is never permissible, nor do academic research studies permit a Muslim to speak about Allah without knowledge.