No, there's no verse that directly detaches obedience from salvation, although Ephesians 2:8-9 says that we are saved by Grace through faith, and not by our own works. But its clear that our faith is substantiated by our works, its the evidence of what we believe. "He that saith, I know him, and keepeth not his commandments, is a liar" (1 John 2:4). Jesus said; "Those who accept my commandments and obey them are the ones who love me" (John14:21). So faith confirmed by obedience, go hand in hand with salvation. "Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but the one who does the will of my Father who is in heaven" (Matthew 7:21). "They profess that they know God; but in works they deny him" (Titus 1:16). Faith without obedience equates to hypocrisy, believing one thing but doing another. Receiving God's grace requires faith, and faith without works (obedience to his word) is dead (James 2:26).