No, Albert Einstein did not state that time travel to the past is hypothetically possible. According to Einstein's theory of general relativity, time and space are interconnected in a four-dimensional continuum known as spacetime. His theory suggests that massive objects, such as stars or black holes, can cause a curvature of spacetime, leading to phenomena like gravitational time dilation.
While Einstein's work laid the foundation for understanding the nature of time and space, he did not propose or support the concept of time travel to the past. In fact, his theory of relativity implies certain limitations on time travel. The most famous limitation is the "arrow of time," which suggests that time flows in a singular direction from the past to the future, and it is not possible to travel backward in time within our current understanding of physics.
It is worth mentioning that there are speculative theories in physics, such as wormholes and certain solutions to Einstein's equations, that propose the possibility of time travel. However, these concepts are still highly theoretical and currently beyond the realm of experimental validation.