However, if without her guardian’s permission, a woman marries a man from a family that is normally perceived to be inferior due to its occupation, then this marriage is invalid. Here is a similar question and answer from Fatāwā Fayḍ-ur-Rasūl:
Question: ‘Ĥindaĥ’ is a Pathan, can a ‘Gĥānchī’ man i.e. Muslim Taylī, be Kufw for her or not?
Answer: Kufw depends on ‘Urf [i.e. norms]. If, in their community, a Pathan woman marrying a Gĥānchī i.e. Muslim Taylī man brings disgrace to her parents, then there is no need for them to cancel this marriage because, according to the issued Fatwā, this marriage did not even take place at all. (Fatāwā Fayḍ-ur-Rasūl, vol. 1, pp. 705)
Question: What if a non-Sayyid Pathan marries a Sayyidaĥ who is sane and has reached puberty with her parents’ consent?
Answer: If the respected Sayyidaĥ and her respected father are aware that he is a Pathan and both she and her father approve of this marriage, then there is no doubt in the validity of this marriage. Here is a related ‘question and answer’ from Fatāwā Razawiyyaĥ volume 11, page 704:
Question: Can a Pathan marry a Sayyidaĥ? بَيِّنُوۡا تُوۡجَرُوا (Please answer and be rewarded).
Answer: From the question it is clear that she is above the age of puberty and her father is alive and both are aware that he is a Pathan and both consent to this marriage. In this case there is no doubt in the permissibility of this marriage. This is clarified in books such as Rad-dul-Muḥtār etc. وَاللّٰهُ تَعَالٰي اَعۡلَم (Allah Almighty knows best.)