Allah Most High has said (1):
“Say: If your fathers, your sons, your brothers, your spouses, your kindred, the wealth you have acquired, the trade whose decline you fear, and the dwellings in which you delight are dearer to you than Allah, His Messenger, and striving in His way, then wait until Allah brings about His command.”
[Surah al-Tawbah: 24]
He thus threatened anyone whose family and wealth were dearer to him than Allah, His Messenger, and striving in His way.
It is related from him—may Allah bless him and grant him peace—in the two Sahih collections that he said:
“Whoever possesses three qualities will experience through them (2) the sweetness of faith: Allah and His Messenger are dearer to him than all else; he loves a person solely for Allah’s sake; and he hates to return to unbelief after Allah has saved him from it just as he hates to be cast into the Fire.” (3)
The sweetness of faith found in the heart does not arise from love of a recompense that has not yet been received. Rather, one who acts solely for pay experiences nothing while working but toil, hardship, and pain. If, then, love for Allah and His Messenger meant nothing more than love for