A safeguard set for anyone he ever wronged
Aisha heard him make it after two men had spoken to him.
أَوَمَا عَلِمْتِ مَا شَارَطْتُ عَلَيْهِ رَبِّي قُلْتُ اللَّهُمَّ إِنَّمَا أَنَا بَشَرٌ فَأَىُّ الْمُسْلِمِينَ لَعَنْتُهُ أَوْ سَبَبْتُهُ فَاجْعَلْهُ لَهُ زَكَاةً وَأَجْرًا
Allāhumma innamā anā basharun, fa-ayyu-l-muslimīna ādhaytuhu aw sababtuhu…fa-jʿalhā lahu zakātan wa qurbah.
“O Allah, I am only a human being. Any Muslim I have harmed or cursed, make it for him a purification and a means of nearness.”
The full narration
A'isha reported that two persons visited Allah's Messenger (ﷺ) and both of them talked about a thing, of which I am not aware, but that annoyed him and he invoked curse upon both of them and hurled malediction, and when they went out I said:Allah's Messenger, the good would reach everyone but it would not reach these two. He said: Why so? I said: Because you have invoked curse and hurled malediction upon both of them. He said: Don't you know that I have made condition with my Lord saying thus: O Allah, I am a human being and that for a Muslim upon whom I invoke curse or hurl malediction make it a source of purity and reward
Source
Ṣaḥīḥ Muslim · 6614
- Agreed upon as authentic (al-Bukhārī / Muslim)