WUDU AND NAPPIES
Q. I have a new born child and like any new dad have to clean the nappies. Would my wudu break if i touch the babies [sic.] urine and poo?
Urine and faeces is of course considered impure categories of substances but of that kind which if washed, the impurity is considered removed. It does not however invalidate the wudu’. Imam al-Shurunbulali states:
“And filth regardless of whether it is on the body, clothes or utensils is purified even if it is heavy filth and visible – like blood – by removing the filth itself even if it is achieved by washing it once. This is the correct view. Repeated washing is not a condition because the filth itself is what is considered so one can stop when it disappears…”
( ويطهر متنجس ) سواء كان بدنا أو ثوبا أو آنية ( بنجاسة ) ولو غليظة ( مرئية ) كدم ( بزوال عينها ولو ) كان ( بمرة ) أي غسلة واحدة ( على الصحيح ) ولا يشترط التكرار لأن النجاسة فيه باعتبار عينها فتزول بزوالها…
Thus, if any of the baby’s urine of faeces comes into contact with your hand all that would be required is to wash it off with water.
And Allah knows best.
 al-Shurunbulali, Maraqi al-Falah, p.64.