Exodus 25:35

and a bud under two branches of one piece with it, and a bud under two branches of one piece with it, and a bud under two branches of one piece with it, for the six branches going out of the lamp stand.

And there shall be a knop under two branches of the same, and a knop under two branches of the same, and a knop under two branches of the same, according to the six branches that proceed out of the candlestick.