He رضي اللّه عنـه said to him, "Shall I not teach you
a supplication which the Messenger of Allaah صلّى
اللَّهُ عليه وسلّم taught me? It will
surely prove so effective that if you have a debt as large as a huge mountain,
Allaah سُبحانه وتعالى
will surely pay it for you. Say:
'Allaahummakfini
bi halaalika an haraamika, wa aghnini bi fadlika amman siwaka.'
"O Allaah! Make sufficient for me what is halaal (lawful) and to dispense with what is haram (unlawful) and enrich me with Your Favors so that I need no one but You."