When any of you prostrates, he should not kneel down like a camel; rather, he should put down his hands before his knees

This Hadīth demonstrates the way of going down for prostration. It suggests that one should place his hands down before his knees. However, there are other Hadīths stating that one should place his knees down before his hands. So, both ways are valid, and the one who does this or that should not be subject to criticism.