A search for a narrow-width resonance decaying into two Higgs bosons, each having a mass of 125~\mathrm{GeV} and decaying into a $\mathrm{b\bar{b}}$ pair, is presented. The search is performed using proton-proton collision data corresponding to an integrated luminosity of 35.9~\mathrm{fb}^{-1} at \sqrt{s}=13~\mathrm{TeV} recorded by the CMS detector at the LHC. No evidence for a signal is observed and upper limits at a $95\%$ confidence level on the production cross section times branching fraction for such a resonance decaying to two Higgs bosons and each of them to $\mathrm{b\bar{b}}$ are set in the mass range from $260$ to 1200~\mathrm{GeV}.

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