put sth to rest

put something to rest and lay something to rest {fml} (to put an end to a rumor, to finally show that something is not true;|| to finish dealing with something and forget about it; to stop people from worrying about or believing something) -- покончить с чем-л., положить чему-л. конец

Example 1: Their smiling faces laid to rest the stories of an impending divorce.(MM)
Example 2: The announcement finally laid all the speculation about their future to rest.(OALD)
Example 3: I've heard enough about Ann and her illness. I'd like to put the whole matter to rest.(McGraw-Hill Dictionary of American Idioms and Phrasal Verbs)
Example 4: I'll be happy to lay it to rest, but will Jane?(McGraw-Hill Dictionary of American Idioms and Phrasal Verbs)
Example 5: The minister resigned, and the government hoped that the scandal would finally be laid to rest.(LDOCE)

More examples:

Various issues like improper discipline in a child, peer pressure and poor study performance can be put to rest if children are made to follow a strict uniform code. <...> So the first step in this direction, is by wearing a school uniform, that will put to rest any issues regarding discipline, influence by peers, violence among children, and will instead shape them to be creditworthy and concentrate entirely on studies.