Abu Umamah reported: The Messenger of Allah, peace and blessings be upon him, said:

أَنَا زَعِيمٌ بِبَيْتٍ فِي رَبَضِ الْجَنَّةِ لِمَنْ تَرَكَ الْمِرَاءَ وَإِنْ كَانَ مُحِقًّا

I guarantee a house on the outskirts of Paradise for one who abandons arguments even if he is right.

Source: Sunan Abu Dawud