no smoke without fire, there's

there's no smoke without fire

There is usually truth behind a rumor, suspicion, or bad sign. We decided to investigate the company's financial statements, since they had been paying next to no tax even though their profits were way up. There's no smoke without fire, after all. A lot of people have been saying that he cheated on the exam, and while I don't want to believe it, there's no smoke without fire.
See also: fire, no, smoke, without
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

no smoke without fire, there's

Also, where there's smoke there's fire. A suspicion or rumor usually has a basis in fact, as in When the sales figures continued strong but the company still wasn't making money, he suspected something was wrong-there's no smoke without fire . First stated in the late 1300s, this expression appeared in numerous proverb collections from 1546 on and remains current today.
See also: no, smoke, without
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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