Believers are always successful
Shaykh Muhammad ibn Salih al-‘Uthaymeen, may Allah have mercy on him, said:
You will never find anyone who is endowed with more mercy in mind than others, whose chest is more open than others, and whose heart is calmer than others, except in that of a believer. Even if he is a poor man. A believer is the most joyful person among people, the most peaceful, and there is no one who has such a breadth of soul and spaciousness in the chest than he.
If you wish, then read the words of Allah Almighty, which serve as proof of this: “We will certainly give the believing men and women who acted righteously a wonderful life and reward them for the best of what they did” (an-Nakhl, 16:97).
What is a wonderful life? A wonderful life is a wide chest and a calm heart. Those. no matter what befalls the believer and no matter what bad situation he finds himself in, his heart is always calm and his chest is open.
It is reported that Yahya Suhaib bin Sinan said: “The Messenger of Allah, peace and blessings of Allah be upon him, said: “How amazing is the position of the believer! Verily, everything in his situation is good for him, and this is not given to anyone except the believer: if something pleases him, he thanks (Allah), and it becomes good for him, but if grief befalls him, he shows patience, and this (also) becomes good for him” [Muslim, 2999].
And if any misfortune befalls the unbelievers, do they show patience in it? Not at all, they are crushed and the whole world becomes small for them. It even happens that one of them commits suicide…
As for the disbelievers and those who have lost the religion of Allah and are lost in the pleasures and luxury of this world, even if they build and decorate their palaces, even if this whole world has blossomed for them, they will still remain in the Fire (as in this world and in eternal life).
Some righteous predecessors said: “If kings and their children knew what is in our hearts, they would fight us for it with their swords.”
See “Kitabu al-‘Ilm”.