שולחן ערוך אורח חיים · סימן כ״ג

English

It is permitted to enter a cemetery while wearing tzitzit as long as the fringes do not drag on the graves. But if the fringes drag on the graves it is forbidden as an example of "mocking the poor." The conditional prohibition (only if the fringes are dragging on the graves) applied in their (Talmudic) times, when they placed fringes on their daily garments, but for we who wear fringed garments only for the sake of fulfilling the mitzvah (of tzitzit), it is forbidden even if the fringes do not drag on the graves. However, it is forbidden only if the fringes are visible, but if they are covered, it is permitted.

English

There are those with the custom to tie two tzitzit on two corners together when they enter a cemetery and there is no purpose in doing so.

English

The laws of one who goes within four cubits of a corpse or of a grave are the same as those for one who enters a cemetery.

English

In those places 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."