Are interspersing the beard and wiping the ears obligatory in Wudu'?

The rulings on running fingers through the beard and wiping the ears during Wudu have been explained previously, and one should avoid obsessive thoughts. Wiping the ears is a Sunnah according to the majority of scholars, and exaggerating it may be harmful. For a thick beard, it is not obligatory to wash its roots, and one must beware of extremism and exaggeration in religion.