Is it permissible for a woman to perform tayammum instead of ghusl after menstruation during travel if ghusl is difficult for her?

Tayammum is only permissible when water is unavailable or when one is unable to use it. What was mentioned is not a valid excuse for tayammum, as water is available and one is able to use it. Therefore, repentance is obligatory, and the prayers performed without ghusl must be repeated. However, if water is genuinely unavailable or if one is unable to use it due to an excuse (such as fear of illness or severe cold), then tayammum is valid and the prayer performed with it is sound. A menstruating woman performs tayammum like others when necessary, as Allah Almighty says: ﴿And if you do not find water, then perform tayammum﴾.