Abu Musa Al-Ashari (may Allah be pleased with him) narrates that the Prophet (peace and blessings of Allah be upon him and his family) said, “Say; There is no might or power other than Allah; because it is one of treasures of Paradise.” [Reported al-Bukhari, Muslim 4:2076]
Shaykh Muhammad then went on and advised:
Say La hawla wa la quwata illa billah’, there is no power, there is no capacity but by Allah. ‘Hawl means ‘capacity’, and ‘quwa’ means ‘power’- there is no capacity nor any power but from Allah and by Allah. So if you do dhikr ‘La hawla wa la quwata illa billah’, it is a form of dhikr, and it is repeated for those people who can’t handle their affairs. If you have done all your best and you can’t get out of the problem then say ‘La hawla wa la quwata illah billah’ because you’re doing it by your own means, you have to refer to the means of Allah subhanahu wa ta’ala. You think you can solve your problems? This is why your problems are not solved, leave them to Allah, Allah will solve them for you, provided you do what He commanded you to do –with the ibaadat together.
La hawla wa la quwata Illa billah – this sentence is a treasure ‘kanz’, was revealed to Rasulullah ṣallallahu ‘alaihi wa alihi wa ṣalam from Al Jannah.