📖 Mu’adh ibn Jabal RadhiAllahu 'anhu narrated: The Messenger of Allah SallAllahu 'alaihi wa sallam sent me to Yemen and he said, "Verily, you are going to people among the people of the Book, so call them to testify there is no God but Allah and I am the Messenger of Allah. If they accept that, then teach them that Allah has obligated five prayers in each day and night. If they accept that, then teach them that Allah has obligated charity to be taken from the rich and given to the poor. If they accept that, then beware not to take from the best of their wealth. Fear the supplication of the oppressed, for there is no barrier between it and Allah."
Source: Sahih Al-Bukhari 4090
Sahih Muslim 19
Grade: Muttafaqun Alayhi (Authenticity agreed upon) according to Al-Bukhari and Muslim
📖 Khuzaymah ibn Thabit RadhiAllahu 'anhu narrated: Allah's noble Messenger Muhammad SallAllahu 'alaihi wa sallam said, "Beware of the supplication of the oppressed, for it is carried above the clouds. Allah the Almighty says: 'By My Might and Majesty, I will help you in due time.'"
Source: Al-Mu’jam Al-Kabīr 3630
Grade: Sahih (Authentic) according to Al-Albani
📖 Ibn Umar RadhiAllahu 'anhuma narrated: Allah's noble Messenger Muhammad SallAllahu 'alaihi wa sallam said, "Beware of the supplication of the oppressed, for it ascends to Allah as if it were a flare."
📖 Ibn Abbas RadhiAllahu 'anhuma narrated: Allah's noble Messenger Muhammad SallAllahu 'alaihi wa sallam said, "Two supplications have no barrier between them and Allah: The supplication of the oppressed, and the supplication of a man for his brother behind his back."
Source: Al-Mu’jam Al-Kabīr 11232
Grade: Sahih (Authentic) according to Al-Suyuti
📖 Abu Darda RadhiAllahu 'anhu narrated: Allah's noble Messenger Muhammad SallAllahu 'alaihi wa sallam said, "Verily, when a servant curses something, the curse ascends to the heaven and the gates of heaven close upon it. It turns right and left and if it does not find a place to go, it will return to that which was cursed, only if it deserved to be cursed; otherwise the curse will return upon the one who uttered it."
Source: Sunan Abī Dāwūd 4905
Grade: Hasan (Fair) according to Al-Albani
