Imam al-Bayhaqi related that Bishr ibn al-Harith al-Hafi {May Allah have mercy upon them} said:
“Look at the person who has the most piety, chastity and purest earning from the people and then accompany him and do not sit with the one who will not help you upon your life in the hereafter.”
{Shu’ab al-Iman ~ The Branches of Faith}