《礼记·杂记下》
在此期间，如果遇到五服之内的亲属死了则可以前去哭吊，去哭吊时，穿上与死者关系相称的丧服。
如有服而将往哭之，则服其服而往。
During this period, if a kinsman within five degrees of mourning dies, one could attend the funeral to mourn. When attending the funeral, one must wear mourning clothes suitable for the relationship with the deceased.