  We report preliminary results for the hadronic light-by-light scattering
contribution to the muon anomalous magnetic moment. Several ensembles using 2+1
flavors of M\"obius domain-wall fermions, generated by the RBC/UKQCD
collaborations, are employed to take the continuum and infinite volume limits
of finite volume lattice QED+QCD. We find $a_\mu^{\rm HLbL} =
(7.41\pm6.33)\times 10^{-10}$
