彼に助言

advice to/from him

→ 彼
phrase Rare #32,440
advice to/from him With 助言を求める, it means seeking advice from him; with 助言する or 助言をする, it means giving him advice. The particle に indicates the person involved in the advice.
JA: 困ったときは、彼に助言を求めます。
EN: When I'm having trouble, I ask him for advice.

君は彼に助言求めない方がいいだろう

You’d better not ask him for advice.

私は何をしたらいいのかわからなかったので彼に助言を求めた

I didn't know what to do, so I asked him for advice.

彼に助言をしておきました

I gave him some advice.

私はどんな本を読むべきについて彼に助言してあげた

I advised him on what kinds of books he should read.