Final answer:
Asmaa's salah might be considered valid if there was truly no way to remove the najasa from her clothes, as Islamic law makes concessions for cases of necessity and hardship.
Step-by-step explanation:
The validity of Asmaa's salah, especially when it deals with the presence of najasa (impurity) on her clothing, is a matter pertaining to Islamic jurisprudence. Salah, one of the five pillars of Islam, requires that a person be in a state of purity. This includes the body, the clothes, and the place where the prayer is performed. If a person knowingly prays with najasa on their clothing, and there was an opportunity to remove it but they did not take it, then the salah might be considered invalid.
However, Islamic law also emphasizes the practicality and reasonableness of its applications. It provides concessions for cases of necessity and hardship. If Asmaa truly had no way to remove the najasa, this might be seen as a valid excuse, and her salah could be considered valid under the principle of darura (necessity), which permits certain prohibitions when no other option exists. Ultimately, the validity would depend on the specifics of the jurisprudent's interpretation of Sharia (Islamic law).