Question Summary:
Can I take an oath to receive my US citizenship

Question Detail:

 I have emigrated from an arab muslim country to US and livedthere for almost 20 years. I became a US citizens and gave up my originalarab muslim country citizenship even though I can keep both citizenship inboth countries. My original arab muslim country ruled by islamic law butthere is a lot of corruption and in America we have freedom of religion andwe have mosques. I love America, and have my home there, and my understandingthat a muslim should love the land he lives in and be a good role modelcitizen and respect the law as long as he is not asked to do anythingprohibited in islam.
I wrote and said the following oath upon taking UScitizenship:" I hereby declare, on oath, that I absolutely and entirelyrenounce and abjure all allegiance and fidelity to any foreign prince,potentate, state, or sovereignty of whom or which I have heretofore been asubject or citizen; that I will support and defend the Constitution and lawsof the United States of America against all enemies, foreign and domestic;that I will bear true faith and allegiance to the same; that I will bear armson behalf of the United States when required by the law; that I will performnoncombatant service in the Armed Forces of the United States when requiredby the law; that I will perform work of national importance under civiliandirection when required by the law; and that I take this obligation freelywithout any mental reservation or purpose of evasion; so help me God." 
One day I was searching something on the net and read something that wasconcerning, which was a fatwa by someone( I think from Salafi school ofthought) answering someone who asked about the US citizenship oath and thesheikh said that such oath is an absolute allegiance  (Wiliya Mutlaga) andhence is considered Kufur!!!!!!
I love my religion islam. I also love The United States and alhamduliallahfeel happy there Did I commit any apostasy(kufur) by saying and writing theabove oath? Am I still a muslim!!! Please advise me and Jazzak Allah Khair

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
The oath in reference when examined in context does not constitute Kufr. The constitution facilitates Freedom of Religion.
In principle, a Muslim is bound by the laws of the country if they are not un-Islamic. If one is faced with an un-Islamic situation, he has the right and freedom to explore legal channels to address such issues.
And Allah Ta’āla Knows Best
Abdurrahman 
Student Darul Iftaa
Netherlands 
Checked and Approved by,
Mufti Ebrahim Desai.