The Jamaa'ah is what accords to the truth...

'Abdullaah ibn Mas'ood (radhi-yallaahu 'anhu) said:

((The Jamaa'ah is what accords to the truth, even if you are alone)).

Sharh Usool I'tiqaad Ahlis-Sunnah wal-Jamaa'ah - al-Laalikaa.ee