Sacred Qur'anic verses inform you of the same:
Allah Almighty has said: "And were it not that (all) men might become of one (evil) way of life, We would provide, for everyone who blasphemes against (Allah), Most Gracious, silver roofs for their houses and (silver) stairways on which they ascend" (Qur'an, 43:33); " Do not let the unbelievers think that Our respite to them is good for them: We grant them respite so they may grow in their iniquity, but they will have a shameful punishment" (Qur'an, 3:178); "When Our clear Signs are recited to them, the unbelievers say to those who believe, 'Which of the two sides is best in position? Which makes the best show in council?' But how many (countless) generations before them have We destroyed who were even better in equipment and in glitter to the eye?
Say: “If any men go astray, (Allah) Most Gracious extends (the rope) to them, until, when they see God's warning (being fulfilled, either in punishment or in (the approach of) the Hour, they will at length realize who is in the worst position, and (who is the) weakest in strength! And Allah advances in guidance those who seek guidance, and the things that endure, the good deeds, are best as rewards in your Lord's sight and best in respect of (their) eventual returns.” (Qur'an, 19:73-75).
Abdul-Rahman son of al-Hajjaj has narrated saying that affliction was mentioned to Imam Abu Abdullah [Imam Sadiq], peace be with him, and what Allah, the most Exalted One, the most Great, has in store for a believer, so he said that people once asked the Prophet (PBUH) about who in the life of this world is the most afflicted, tried and tested. The Prophet (PBUH) said, "They are the prophets then people whose conduct is the very best. A believer is tested according to the measure of his Iman (conviction) and good deeds. One whose conviction is sound and action is good will have intensified afflictions, whereas one whose conviction is weak and so is his knowledge, his affliction will be little."[70][257]
Abu Busayr quotes Imam Abu Abdullah Hussein (A.S), peace be with him, as saying, "There are on earth elite worshippers of Allah; whenever something precious descends from the heavens to earth, Allah diverts it from them to others; and whenever a calamity descends, He sends it their way."[72][259]
Al-Hussein ibn Alwan quotes the Imam Hussein (A.S), too, as saying, "If Allah Almighty loves one of His servants, he pours calamities on him, drowning him in them; I and you welcome the morning then the evening in such condition."[73][260]
Abu Abdullah, peace be with him, has said that the Messenger of Allah (PBUH) said, "A great tribulation is rewarded with a great reward. If Allah loves one of His servants, He tests him with a great calamity. Whoever accepts it will have won the pleasure of Allah, and whoever is angered by the calamity will earn Allah's wrath."[75][262]
Imam Abu Ja far, peace be with him, has said, "Allah tries the believer in this life according to [the degree of conviction in] his faith."[76][263]
Najiyah has said, "I said to Abu Jafar, peace be with him, 'Al-Mughirah says that Allah does not afflict a believer with leprosy or leukemia or… anything else.' He said, 'He is unaware of the believer in Al-Yasin who is referred to in Surat Ya-Sin (Chapter 36 of the Holy Qur'an); his fingers were dried; then they were healed. He warned the disbelievers and returned to them the next day, but they killed him… A believer is afflicted with every calamity, and he dies in every way, but he does not kill himself."[77][264]
Abu Abdullah (Imam Jafar Sadiq [A.S]) has said, "People of righteousness will always remain in a hardship; but it is for a short period and will lead to a very, very long period of felicity."[79][266]
Hamdan quotes Abu Jafar (Imam Muhammad Baqir father of Imam Jafar Sadiq [َA.S]) saying, "Allah, the most Exalted One, the most Great, tries to get closer to a believer through affliction like a man trying to get closer to his wife by giving her a present; He protects him in the life of this world like a doctor protecting his patient."[80][267]
Abu Abdullah (A.S) has said that the Prophet (PBUH) was invited once to a meal. When he entered the host's house, he saw that a hen had laid an egg on a fencing wall. The egg fell on a wedge in the wall and stayed on it without falling and breaking. The Prophet (PBUH) was surprised, so the man said to him, "Are you surprised about this egg (which did not break)? By the One Who sent you with the truth, I have never been afflicted with a loss [as small as losing an egg]," whereupon the Messenger of Allah (PBUH) stood up and did not partake of that man's food at all. He (PBUH) said, "Allah has nothing to do with one who never suffers a loss."[81][268]
Reports similar to these are numerous, so let us be satisfied with this much.
source : tebyan
