What is the ruling on one who does not sit until her back is straightened when rising from prostration, but rather raises her head slightly then performs the second prostration, and is it permissible to teach her that there is a difference of opinion among scholars regarding the obligation to repeat her prayers?

The majority of scholars hold the view that sitting between the two prostrations and performing it with ṭumaʾnīnah (stillness/composure) is a pillar (rukn) of prayer, citing the Prophet’s (peace and blessings be upon him) saying: "Then raise yourself until you are calmly seated." However, some scholars believe that merely raising the head is sufficient. Therefore, the prayer of a woman who does not perform the ṭumaʾnīnah in her sitting between the two prostrations is considered valid according to the second opinion. Nevertheless, what she does contradicts the opinion of the majority, and she should be advised accordingly.