No, it isn't. The Sabbath remains a component of the Mosaic covenant, and you won't find a Sabbath commandment outside that covenant's tenure. It was exclusive to the children of Israel (Exodus 31:12-17) and doesn't appear as a commandment to the Gentile nations outside Israel's borders, nor to those who are no longer accounted as the children of Israel because of God's adoption.
John 1
10 He was in the world, and the world was made through Him, and the world did not know Him. 11 He came to His own, and His own did not receive Him. 12 But as many as received Him, to them He gave the right to become children of God, to those who believe in His name: 13 who were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
Matthew 17
24 When they had come to Capernaum, those who received the temple tax came to Peter and said, Does your Teacher not pay the temple tax?
25 He said, Yes.
And when he had come into the house, Jesus anticipated him, saying, What do you think, Simon? From whom do the kings of the earth take customs or taxes, from their sons or from strangers?
26 Peter said to Him, From strangers.
Jesus said to him, Then the sons are free".
Galatians 4
Now I say that the heir, as long as he is a child, does not differ at all from a slave, though he is master of all, 2 but is under guardians and stewards until the time appointed by the father. 3 Even so we, when we were children, were in bondage under the elements of the world. 4 But when the fullness of the time had come, God sent forth His Son, born of a woman, born under the law, 5 to redeem those who were under the law, that we might receive the adoption as sons.
6 And because you are sons, God has sent forth the Spirit of His Son into your hearts, crying out, Abba, Father! 7 Therefore you are no longer a slave but a son, and if a son, then an heir of God through Christ.
