The Family To Love.

As-Salaam alaikum,
The Noble Messenger of Allah, Sallallahu alaihi Wasallam, was asked, "Who are the family of Muhammad whom we are commanded to love, honour and show reverence to"?
He replied, "The people of purity and fidelity who believe in me and are sincere."

 He was asked, "What are their signs"? He answered, "Preferring love of me above every other beloved and being occupied inwardly remembering me after remembering Allah." In another variant: "Their sign is constantly remembering me and frequently asking for Blessings upon me."

Again, the Messenger of Allah, Sallallahu alaihi Wasallam, was asked, "Who is the one strongest in faith in you"? He answered, "The one who did not see me and yet believed in me with yearning for me and sincere love for me. The sign of that is that he would wish to give all he possesses to see me. (Another variant has: "all the gold in earth") such is the one who truly believes in me and has sincere true love of me."

For further reading on this, see
"KITAB SHIFA..", by Sidi al-Qadi Iyyad.