Sayyiduna Abu Dharr radi allahu anhu narrated that Allah’s Messenger Sallalahu alaihe wa sallam said,
“Indeed, I know a verse such that if the people go by it, it would suffice them.(They would not need to observe other invocations. It is:
One who puts his trust in Allah, Allah is sufficient for him.He gets the blessings of both the worlds.
It is a part from ayah 65:2 and 65;3
That is instructed to whoever should believe in Allah and the Last day. And whoever fears Allah – He will make for him a way out. And will provide for him from where he does not expect. And whoever relies upon Allah – then He is sufficient for him. Indeed, Allah will accomplish His purpose. Allah has already set for everything a [decreed] extent.
Reference of Hadith : Mishkat al Masabih: bab tawakkul wa sabr , hadith number:5306