elaborate more please

actually it is sertu..... i know u referring to sertu, just, u know.... dont want to confuse people

sertu itu adalah cara nak suci dari najis berat..... 1 bilasan air+tanah, 6 bilasan air mutlak

samak adalah cara nak sucikan kulit binatang dari daging dan darah, supaya bersih dan tahan lama

for me u have to sertu the cat la.... since u want to pet, cuddle it....

Sebab bulu kuching ada najis?

sertu is, to clean ur self or object from "najis berat", that is anything from dog and swine...
but, if its a dry contact, like ur hand is dry, and the dog is dry, and u pet the dog, u dont have to sertu.....

but in ur cat case, the dog lick ur cat, of coz got saliva....
so from my opinion, is to clean ur cat the sertu way, or let the cat sit till the saliva is gone(vaporate).....
this is base on my opinion only, providing that maybe u want to held ur cat, and the saliva is still there, and got on ur hand, u dint notice. so x sah kalau ko sembahyang

kucing pun ada la caranya nak bersihkan dirinya, tidak perlu suh manusia nak tolong, dier pun reti nak cuci

tapi kalau tak yakin sgt, gi tolong mandikan kucing ko, tengok apa jadi

the money, if we dont see with our own eyes, than its ok.... we dont know where the money might travel during the transaction
najis here i mean swine and dog.... they r categorize as "najis berat".... not literally najis like poop
if i touch swine or dog, when both my hand and the dog or swine(the place that i touch to be specific), is dry, i dont have to sertu my hand.... but if both or just one side is wet, then i need to sertu my hand.....

and shit water is "najis sederhana", to clean it is using anything that can hilangkan the feel, colour and smell(u stisfy, confirm that its now clean)