In this paper, we prove that any compact 2-sided smooth stable minimal hypersurface in a shrinking gradient Ricci soliton (M^n, g, f) with scalar curvature R (n-1) must have vanished second fundamental form and vanished normal Ricci curvature. For shrinking gradient Ricci solitons with scalar curvature R (n-1), the existence of an area-minimizing hypersurface would imply that M is splitting.
Sun et al. (Thu,) studied this question.