After searching through Pen Ts'ao Ching, I can't find tea mentioned anywhere in the book. The Index doesn't help either, as tea, tu, chia, ch'uan, she, ming, or camellia sinensis are nowhere to be found.
Huayang Guo Zhi is in Chinese, so I can't read any of that, lol.
If anyone can help me find any of these references then please do. I just want to see them with my own eyes, just for the sake of seeing them.

Original post:
So, I bought Shijing "The Book of Songs" to add to my tea book collection. It describes for the first time the use of tea leaves. The book is comprised of 305 works dating from the 11th to 7th centuries BC, according to Wikipedia. I wanted this book just because of that.
The problem is, I can't actually find the tea reference, mainly because I'm too impatient to actually read the whole book from cover to cover (Edit: reading it now), especially while I'm in the middle of another tea book and another ancient book I find interesting called the I Ching.
If anyone knows where it's at in the book, please do tell. I plan on reading this whole book some day, but I want to see this tea reference ASAP to satisfy my OCD.
The version I bought is "The Book of Songs" (Shijing) The Ancient Chinese Classic of Poetry, translated by Arthur Waley ISBN 978-0-8021-3477-6
I think the word "tea" will be spelled "tu" wherever it's at in the book. I have the physical book and I'd hate to blow $30+ on the ebook version just to quick search "tu" in the search bar.
PS: I'll update this post with the results when I find them.