When you discuss scholarly issues, you have to search for the truth according to evidence. You should not be fanatic to your view. The person who is holding the truth should be followed and the one who is in the wrong side should abandon his views and adopt the truth. Moreover, you have to argue with each other in the best manner and eschew violence and intensity. Allah (Exalted be He) asked Muslims to refer to the Qur'an and the Sunnah of the Prophet (peace be upon him) in cases of dispute. Allah (Exalted be He) says,
(And) if you differ in anything amongst yourselves, refer it to Allâh and His Messenger (صلى الله عليه وسلم), if you believe in Allâh and in the Last Day. That is better and more suitable for final determination.
And argue not with the people of the Scripture (Jews and Christians), unless it be in (a way) that is better (with good words and in good manner, inviting them to Islâmic Monotheism with His Verses), except with such of them as do wrong
(Part No. 12; Page No. 199) and
Invite (mankind, O Muhammad صلى الله عليه و سلم) to the Way of your Lord (i.e. Islâm) with wisdom (i.e. with the Divine Revelation and the Qur’ân) and fair preaching, and argue with them in a way that is better.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.