reliable source

Translations
надежный источник
The journalist always checks the information with a reliable source.
Журналист всегда проверяет информацию с надежным источником.
Definitions
A reliable source is a source of information that is trustworthy, credible, and accurate, often based on evidence, expert opinion, or established facts. It is typically used in research, journalism, and academic writing to ensure the validity of the information presented.
Words
reliable

adjective
надёжный
source

noun
источник