-اللّٰهُمَّ اكْفِنِيْ بِحَلَالِكَ عَنْ حَرَامِكَ، وَأَغْنِنِيْ بِفَضْلِكَ عَمَّنْ سِوَاكَ
Allaahummak-finii bihalaalika ‘an haraamik(a), wa aghninii bifadlika ‘amman siwaak. (‘Ali ibn Abi Talib. Sunan at-Tirmidhi #3486)
O Allah, protect me from what You declared haram (unlawful) through the sufficiency of what You made halal (lawful). And make me, by Your benevolence, independent of all besides You.
Sayyidna ‘Ali (ra) was approached by a slave who needed money to win his freedom. He did not have money to help the person; instead he taught him these words, saying that the Prophet (sallallahu alayhi wa sallem) said, “If one is under the burden of a mountain of debt, Allah will help him discharge it when he supplicates to Him thus.”
(Source: Khalid Baig’s translation and commentary of du’aa #111 from the Accepted Whispers: Munajat-e-Maqbul)