Re: viewing the body after death
As far as I know that once the husband dies, a wife is still under nikkah till the end of her “iddat” period and hence, the husband remains mehram for her for that time. Therefore, it is allowed for her to see and wash his body. On the contrary, that is not the case with husband when his wife dies.
This is the common understanding in Ahnaaf unless otherwise, other school of thought disagrees and has a better daleel for that matter.
Hope, my earlier response is clear now. May Allah:swt: give us knowledge and guide us of what we do not know. Aameen.