Here are some ahadith about Calamities and Hardships from the book Mishkatul Anwar fi Ghurur il Akhbar that I compiled. I pray it benefits you.

Hadith #1718 Imam Baqir (a.s) narrated that once when Moses (a.s) left the house, he met one of the Israelites. He went to Mount Tur with him and asked him to sit down until he returned. He drew a circle around him and raised his head towards the sky and said: “I entrust You with my friend. You are the best Guardian.” Then he left. Then he went away and made supplications to God in a truly spiritual way. When he returned, he saw that a lion had attacked his friend, torn him into pieces, and eaten him up. Then Moses (a.s) raised his head towards the sky and said: “O' God! I entrusted him with You because You are the best Guardian. But You sent your worst beast to attack him, kill him, tear him into pieces and eat him up!” A revelation came: “O' Moses! Your friend had a rank in Heaven that he could not attain otherwise. O' Moses! Look!” Then the curtains of the Unseen were drawn aside and Moses (a.s) looked on and saw his friend in an exalted house. Then Moses said: “O' Lord! I am pleased.”

-1712 Imam Sadiq (a.s) said: “God the Almighty always sends calamities upon a believer. He cannot sleep one night and wake up the next morning without any problems. Either he gets ill or he has a family or financial problem or suffers from a natural disaster. All these are so that God can give him a reward instead.”

-1713 Imam Sadiq (a.s) said: “Any believer is reminded (of God) once every forty days by either a tragic event of a financial or physical nature for himself or his children, or a sort of sadness which he does not understand the reason for. Then he will be rewarded.”

-1716 Imam Baqir (a.s) said: “Whenever God wishes to honor one who has committed sins, He will make him ill, or needy, or make him suffer from a difficult death to compensate for his sins. Whenever God wishes to humiliate someone who has done some good deeds, He will make him perfectly healthy, or improve his living conditions, or make his death an easy one for him to compensate for his good deeds (in this world before he goes to meet his Lord).”

-1706 Imam Sadiq (a.s) said: “There will not pass forty days before God either descends a calamity or a physical illness upon a believer so as to reward him for it.”

-1707 Imam Sadiq (a.s) said: “If a believer only knew what the reward for perseverance in the face of calamities is, he would always wish to be torn into pieces.”

-1709 Imam Baqir (a.s) said: “A group of people went to see Imam Sajjad (a.s). Abdullah ibn Abbas was with him, too. The people talked about the calamities of the Shiites and their sufferings. Then they went to see Imam Hussein (a.s) and said the same things. Imam Hussein (a.s) said: “I swear by God that the speed with which poverty and calamities rush towards our friends is more than the running speed of the zebra, the speed of the flood and the rainfall. If you are not suffering this way, then we know that you are not one of us. Your orphans will be helped by us, your debts will be repaid by us, and your sins will be forgiven by us.”

-1710 Someone talked about calamities and things that God has allocated to believers in front of Imam Sadiq (a.s). He said: “They asked the Prophet of God: “Who experiences the worst calamities in this world?” The Prophet answered: “The Prophets experience the worst calamities in this world. Then those who are most similar to them, and then the believers experience calamities based on their level of faith and good deeds. The calamities experienced by those whose deeds are more will be worse. Whoever has a weaker faith and less good deeds will experience less calamities.”

1722- Zaris al-Kanasi narrated that he went to see Imam Baqir (a.s) with several other people including Hamran ibn Aein. Hamran said: “O' May I be your devoted servant! When we read the verse: “Whatever misfortune happens to you is because of the things your hands have wrought.” [The Holy Quran: Shura ] 42:30 does it mean that the misfortunes that happened to the Prophet (a.s) and Ameer al-Momineen (a.s) and the Holy Household were due to sins?” Imam Baqir (a.s) replied: “O' Hamran! Their misfortunes were not due to sins. But their misfortunes were so extensive that they will get rewarded for them.”

1725- Imam Baqir (a.s) said that God the Almighty said: “Some of My servants are such that their religious affairs will not improve unless they get poor or sick.”

1737- Imam Sadiq (a.s) quoted on the authority of God's Prophet (a.s): “I swear by God that no one can attain nobility near God unless his sufferings increase.”

1739- Imam Sadiq (a.s) said: “The people who suffered the worst hardships were the Prophets. Then there are those are most similar to the Prophets who suffer the worst hardships.”

1740- Imam Sadiq (a.s) said: “God's Prophet (a.s) was asked: “Which people suffer the most in this world?” The Prophet (a.s) said: “The Prophets. Then those who are most similar to them. Then the believers will suffer according to the degree of their faith and good deeds. The stronger their faith, and the more their good deeds are, the worst will their sufferings be.”

1741- Imam Sadiq (a.s) said: “A believer is similar to a scale. The stronger his faith, the more his sufferings will be.”

1744- Imam Sadiq (a.s) said: “Those who follow the right way are always in hardship. But this hardship is for a short duration, and it will be followed by a long period of well-being.”

1745- Imam Sadiq (a.s) said: “There is a rank near God for His servants which they cannot attain unless they either get sick or lose some property.”

1755- Whoever says the following seven times after the morning prayer before saying anything else: “In the Name of God, the Most Gracious Most Merciful. There is no strength nor power but in, or by means of, God, the Exalted.” God will fend off seventy types of calamities from him- the simplest of which is leprosy.”