Allah looks at your heart

Abu Hurairah ra said that the Prophet PBUH said : "Beware of suspicion, for suspicion is the greatest falsehood. Do not try to find fault with each other, do not spy on one another, do not vie with one another, do not envy one another, do not be angry with one another, do not turn away from one another, and be servants of Allah, brothers to one another, as you have been enjoined. A Muslim is the brother of a muslim, he does him no wrong, nor does he let him down, nor does he despise him. Fear of God is here, fear of God is here, and he pointed to his chest. It is evil enough that a Muslim should look down on his brother. For every muslim is sacred to one another : his blood, his honour, and his property. Allah does not look at your bodies or your forms, or your deeds, but He looks at your hearts". ( Bukhari, Muslim )

Imam Ash-Shafi on friends

A friend who does not benefit at the time of hardships,
Is close to an enemy on the scales,
The friend does not remain, during all times,
Nor does the brother, except for consolation.
I searched the days, with all my strengths
for a brother to trust, but my search was fruitless,
The lands and those who live them were barren,
As though its people were not people [I wanted them to be]
“I love those who are pious but Alas! I am not from amongst them
Maybe Allaah will bestow upon me (due to my love for them) Piety”