The World Federation One Stop Fiqh

Ruling 585

It is not necessary for someone who wants to perform ṣalāt al‐mayyit to have wuḍūʾ, ghusl, or tayammum, or for his body and clothes to be pure. In fact, even if his clothes are usurped there is no problem, although it is better that he observes all the rules that apply to other prayers.