the oath: “But no, by your Lord, they will not believe.” It is also possible that the “no” in His saying, “But no,” is expletive, as in His saying, “But no, I swear.”
“Until they make you judge”: that is, until they appoint you as arbiter. “In all their disputes”: that is, in those matters of theirs which have become disputed, entangled, and whose ruling has become unclear to them. From the same root comes the word for trees, because their branches intertwine with one another.
“Then find no discomfort within themselves”: Mujahid said, “No doubt”; others said, “No constraint.” “Concerning what you have decided”: al-Dahhak said, “No sin”—that is, they would sin by rejecting what you have decided. “And submit in full submission”: that is, they obey your command with complete obedience.