“The end of labor is to gain leisure.”
This shows up in Tyron Edwards’ A Dictionary of Thoughts in 1909, Century Illustrated Magazine, also from 1909. And then it just keeps on keeping on. This may be Aristotelian, but as far as I can find, it is not really Aristotle.
There are ideas that seem akin to this in Aristotle: in Nicomachean Ethics, for example, he says “[because], happiness seems to reside in leisure, we labor [sacrifice leisure] so that we may have leisure” δοκεῖ τε ἡ εὐδαιμονία ἐν τῇ σχολῇ εἶναι, ἀσχολούμεθα γὰρ ἵνα σχολάζωμεν (1177b). And Aristotle talks a lot about leisure as being desirable and “although leisure and business are both necessary, leisure is more fully an end than business” (εἰ γὰρ ἄμφω μὲν δεῖ, μᾶλλον δὲ αἱρετὸν τὸ σχολάζειν τῆς ἀσχολίας καὶ τέλος, 1337b33-35). Earlier, he repeats the phrase that “business is for the sake of leisure” (ἀσχολίαν δὲ σχολῆς), in a series of nearly Orwellian paradoxes: “war is for the sake of peace, business for the sake of leisure, and necessary and useful things are for the sake of the good.” (πόλεμον μὲν εἰρήνης χάριν, ἀσχολίαν δὲ σχολῆς, τὰ δ᾿ ἀναγκαῖα καὶ χρήσιμα τῶν καλῶν ἕνεκεν,1333c35-37).
So, for this one, I think we have a bit of an elaborated translation of an essentially Aristotelian idea. But, still, he didn’t really say this—Aristotle is perfectly capable of saying that the telos of a thing is another thing. Where he mentions telos in conjunction with leisure, he writes that leisure itself is an end on its own more than business [read: ‘labor’] is. This is a rather different notion than saying that one is the end of the other.