Should one fear teaching people because of the Ḥadīth "The first three with whom the Fire will be kindled"?

Some of the Salaf, among them Abu Hurairah, may Allah be pleased with him, feared this hadith and similar ones. However, he did not cease narrating hadith; rather, he was the Companion who narrated the most hadith. The hadith benefited him by making him constantly monitor his intention and scrutinize his sincerity. Therefore, what is required of a servant is to always monitor his intention, not to refrain from disseminating knowledge, for its dissemination with sincerity is a great act of worship and a mercy by which every believer takes refuge.