When the prophet of Islam (peace be upon him and his progeny) was asked: with whom should we be friend? He mentions three characteristics for a friend. Choosing a friend and companion is of great importance. The Holy Quran the narrations of Ahlulbayt have opened up a very bright horizon in front of us which is extremely important and spectacular. I have been searching for such narrations and verses for about two years. And I wrote a book by the name of “socializing” which is a perfect book for those believers who are eager to find out the methods of finding friends, making friends and socializing.
There is a narration in that book which the holy Prophet mentions three traits:
This is the first one:
يُذَكّركُم اللّهُ رُؤيَتُهُ
You must choose a friend that when you see him, he reminds you of Allah, in other words, you see Allah in him.
source : erfan.ir