In non-Arabs, lineage is not an equality factor. However, other things are. The distinguishing factor (superiority or inferiority) in non-Arabs is usually occupation.
(Fatāwā Amjadiyyaĥ, vol. 2 pp. 132)
Therefore, if a community is considered inferior because of its occupation, then this will also become a means of the man not being a Kufw for the woman. (Fatāwā Fayḍ-ur-Rasūl, vol. 1, pp. 705)
Question: Is a non-Arab man Kufw to an Arab woman?
Answer: Other than a non-Arab scholar no non-Arab man is Kufw for an Arab woman. Ṣadr-ush-Sharī’aĥ, Badr-uṭ-Ṭarīqaĥ, ‘Allāmaĥ Maulānā Muftī Amjad ‘Alī A’ẓamī عَـلَيْهِ رَحْـمَةُ الـلّٰـهِ الۡـقَـوِی wrote on page 53, part 7 of Maktaba-tul-Madīnaĥ’s version of Baĥār-e-Sharī’at: All families of Quraysh are Kufw for each other. Even a ‘Qurayshī non-Ĥāshimī’ is Kufw for a Ĥāshimī. No non-Qurayshī is Kufw for a Qurayshī. Excluding the Quraysh all other Arab families are Kufw for each other including Anṣār and Muĥājirīn. A non-Arab is not Kufw for an Arab, except for a scholar because his ‘nobility’ is greater than that of lineage.
(Fatāwā Qāḍī Khān, vol. 1, pp. 163; ‘Ālamgīrī, vol. 1, pp. 290-291)
My master A’lā Ḥaḍrat, Imām-e-Aĥl-e-Sunnat, Maulānā Shāĥ Imām Aḥmad Razā Khān عَـلَيْهِ رَحْمَةُ الـرَّحْمٰن stated in Fatāwā Razawiyyaĥ volume 11, page 713: Fatāwā Khayriyyaĥ states that Sayyidunā Ibn ‘Abbās رَضِیَ الـلّٰـهُ تَعَالٰی عَـنْهُمَا said, ‘Scholars have seven hundred (700) higher ranks than common believers and there is a journey of five hundred (500)