Is it permissible for a Muslim to read the books of disbelievers with the aim of exposing their falsehoods and recognizing their invalidity, while maintaining adherence to his religion?

Emigration to non-Muslim lands is impermissible except for one who can observe the rituals of their religion and is safe from temptation. It is better to reside among Muslims. As for reading books by non-Muslims for the purpose of inviting them to Islam and clarifying the falsehood of their beliefs, it is permissible for one who is qualified for that, possessing knowledge and faith. However, it is not permissible for one who fears temptation. It is preferable for the questioner to utilize books by Muslim scholars specialized in comparative religions to avoid doubts and save effort.