Don’t argue just to win or be loud
Allah says: "Don’t follow what you have no knowledge of. Your hearing, sight, and heart — all will be held accountable." (Al-Isra`: 36)
"Don’t argue with each other." (Al-Anfal: 46)
"Don’t be like people who split up and disagreed after clear truth came to them. They will face a heavy punishment." (Ali Imran: 105)
The Prophet Muhammad said: "Read the Qur’an as long as your hearts are united. If your hearts can’t stay together anymore, then stop and stand up." (HR. Al-Bukhari 5060 and Muslim 2667 from Jundub bin Abdullah)
(from Syajaratul Ma‘arif, Syaikh al-‘Izz bin Abdus Salam)