The Reliance of the Traveller, by Ahmad ibn Naqib al-Misri, translated by Nuh Ha Mim Keller, states in the context of marriage:
m4.2 The following are not suitable matches for one another:
(1) a non-Arab man for an Arab woman (O: because of the hadith that the Prophet (Allah bless him and give him peace) said, "Allah has chosen the Arabs above others");
Arabic Text (of Hadith Only):
إن الله اصطفى العرب على غيرهم
(Here, "O:" indicates an "excerpt from the commentary of Sheikh 'Umar Barakat".)
This took me by surprise, since it seems to directly contradict another hadith:
... There is no virtue for an Arab over a non-Arab, nor for a non-Arab over an Arab ...
Question: Is the hadith "Allah has chosen the Arabs above others" reliable, and how does it not contradict "no virtue for an Arab over a non-Arab"?
An anti-Islam blog quotes a SunniPath fatwa (no longer available):
The fact that Allah Most High has chosen the Arabs over other nations is affirmed in rigorously authenticated hadiths of the Prophet, may Allah bless him and give him peace; related by Bukhari and Muslim in their “Sahih” in the beginning of the chapter of merits, # 5897, on the authority of Wathilah ibn al-Asqa` who said, “I heard the Messenger of Allah, may Allah bless him and grant him peace, say, 'Verily Allah has chosen Kinanah from the son of Isma'il, and He has chosen Quraysh from among Kinanah and He has chosen Hashim from among Quraysh and He has chosen me from the Bani Hashim.'”
Islam Q&A seems to say two contradictory things on the topic: "... Arabs are superior to others in terms of descent and lineage ..." and "... an Arab Muslim cannot be superior to a non-Arab Muslim just because he is an Arab ...".