Translation:Shulchan Aruch/Orach Chaim/23
23: Laws of tzitzit in the cemetery.
1 It is permitted to enter the cemetery while wearing tzitzit as long as it does not drag on the graves. But if it drags on the graves it is forbidden because of "mocking the poor." When are the words said? In their days, when they placed fringes on their garments that they wear for their own need, but we who have intent with them only for the sake of the mitzvah, it is forbidden even if they do not drag. And these words are when the fringes are revealed, but if they are covered, it is permitted.
2
There are those with the custom to tie two tzitzit on two corners together when they enter the cemetery and they accomplished nothing with their enactment.
3
The law of one who goes within four cubits of a corpse or of a grave is the same as one who enters the cemetery.
4 In a place where it is the custom to remove the tzitzit from a dead person's tallit in the home, if the pallbearers wear tzitzit there is reason to suspect transgression of "mocking the poor."