srotavyah

śrotavyaḥ is to be heard; SB 1.2.14
śrotavyaḥ is to be heard; SB 2.1.5
śrotavyaḥ must be heard; SB 2.2.36
śrotavyaḥ to be heard about (from bona fide sources); CC Madhya 22.110