“…One of the most important classes of fractional diferential equations are the fractional Itô-Doob stochastic diferential equations which had many applications in describing many phenomena of real life, and the nonlocal conditions describe numerous problems in physics (see [13,22,23]), fnance (see [24,25]), and mechanical problem (see [26,27]). To the best of our knowledge, there is no existing work on the Hyers-Ulam stability of fractional Itô-Doob stochastic integral equations.…”