الكافي- ط الاسلامية, volume 2, page 334

18. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from his father from abu Nahshal from ‘Abd Allah ibn Sinan from Abu ‘Abdillah (a.s.) who has said the following: “Whoever finds excuses for an unjust person Allah gives power to another person who will oppress him. If he prays, his prayers will not be heard and Allah will not give him any reward for his suffering injustice.”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

19. It is narrated from him (narrator of the Hadith above) from Muhammad ibn ‘Isa from Ibrahim ibn ‘Abd al-Hamid from Ali ibn abu Hamza from abu Basir from his father abu la’ far (a.s.) who has said the following: “Allah retaliates an oppressor through another oppressor only. It is in the words of Allah, the Most Majestic, the Most Holy, ‘Thus do We make the unjust friends of one another because of their evil deeds.’” (6:129)

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

20. Ali ibn Ibrahim has narrated from his father from his father al-Nawfali from his father al-Sakuni from his father Abu ‘Abdillah (a.s.) who has said the following: “The Messenger of Allah has said, ‘If one does injustice to a person and he passes away, he (the doer of injustice) must ask forgiveness from Allah for him (oppressed) and it will be the expiation for his injustice.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

21. Ahmad ibn Muhammad al-Kufi has narrated from Ibrahim ibn al-Husayn from Muhammad ibn Khalaf from Musa ibn Ibrahim al-Marwazi from abu al-Hassan Musa (a.s.) who has said the following: “The Messenger of Allah has said, ‘Whoever rises in the morning and has no intention to do injustice to anyone Allah forgives his sins.”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

22. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from al-Hassan ibn Mahbub from Ali ibn abu Hamza from abu Basir who has said the following: “Once two people came to see Abu ‘Abdillah (a.s.) about the differences that they had over a deal between them and when the Imam heard their case, he said, ‘To achieve victory through injustice is not victory in anything good. What the oppressed takes away from the religion of the oppressor is much more than what the oppressor takes from the property of the oppressed.’ The Imam then said, ‘Whoever does evil to people should call it evil when it is done to him. Is it not the case that children of Adam reap what they sow? No one expects to harvest sweet from sour and vice versa. The two men then agreed to a settlement before standing up to leave.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.