A'isha reported that two persons visited Messenger of Allah 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.

حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ أَبِي الضُّحَى، عَنْ مَسْرُوقٍ،
عَنْ عَائِشَةَ، قَالَتْ دَخَلَ عَلَى رَسُولِ اللَّهِ ﷺ رَجُلاَنِ فَكَلَّمَاهُ بِشَىْءٍ لاَ
أَدْرِي مَا هُوَ فَأَغْضَبَاهُ فَلَعَنَهُمَا وَسَبَّهُمَا فَلَمَّا خَرَجَا قُلْتُ يَا رَسُولَ اللَّهِ مَنْ أَصَابَ مِنَ
الْخَيْرِ شَيْئًا مَا أَصَابَهُ هَذَانِ قَالَ " وَمَا ذَاكِ " . قَالَتْ قُلْتُ لَعَنْتَهُمَا وَسَبَبْتَهُمَا قَالَ "
أَوَمَا عَلِمْتِ مَا شَارَطْتُ عَلَيْهِ رَبِّي قُلْتُ اللَّهُمَّ إِنَّمَا أَنَا بَشَرٌ فَأَىُّ الْمُسْلِمِينَ لَعَنْتُهُ أَوْ سَبَبْتُهُ
فَاجْعَلْهُ لَهُ زَكَاةً وَأَجْرًا " .