I'm afraid you are wrong, as
@Chinese-Dragon pointed out, China supports the legitimate and internationally recognised Yemeni government led by Hadi. So on this one China is on the same page with Saudi Arabia. Same as the rest of the world(including the U. N) bar a very few countries like Iran.
Where's the link for this article? Lol
Moreover, this KSA, Iran, Israel duo is a complex one.
However, you people have to realise that KSA and Iran both consider each other as a greater threat than Israel. Which I think is understandable judging by the power struggle/proxy wars both of them are engaged in throughout the middle East and the difference in their ideology/religious sect.