Mishnayos Pesachim Perek 4 Mishnah 6

כל מלאכה – [all work] which is for the needs of he Festival/Holiday and he began it prior to the fourteenth [of Nisan] may complete it on the fourteenth. And even in a place where they had the practice of not doing work. But work that is not for needs of he Festival, in a place where it was the practice to do work, they may do it, but I n a place where it was the practice not to do it, even if he began it prior to the fourteenth, he may not complete it.

חייטים – are permitted on the fourteenth [of Nisan] in every place, for we found regarding them a leniency even greater than other artisans on the Intermediate Days of the Festival for the commoner who is not an artisan in this sews/mends in the normal manner. Therefore, on the fourteenth [of Nisan] which is more lenient than the Intermediate Days of the Festival, even an artisan is also permitted.

והספרים והכובסים – and similarly one who comes from abroad and one who leaves from prison takes haircuts and does laundry on the Intermediate Days of the Festival, and since we find for them an indirect legal permission on the Intermediate Days of the Festival, on the fourteenth [of Nisan] which is lenient, we permit for the entire world.

אף הרצענים – for similarly those who come up [to Jerusalem] for the Festival repair their shoes on the Intermediate Days of the Festival. And the Sages hold that we don’t learn beginning the work of shoemakers who make new shoes first from the end of work the repair of shoes of those who go up [to Jerusalem] for the Festival. And the Halakha is according to the Sages (see Pesahim 55b).