when a man cures anything, the curse goes up to heaven and the gates of heaven are locked against it. Then it comes down to the earth and its gates are locked against it. Then it goes right and left, and if it finds no place of entrance it returns to the thing which was cursed, and if it finds no place of entrance it returns to the thing which was cursed, and if it deserves what was said (it enters it), otherwise it returns to the one who uttered it. Abu Dawud said : Marwan b. Muhammad said: He is Rabah b. al-Walid who heard from him (nimran). He (Marwan b. Muhammad) said: Yahya b. Hussain was confused in it.  

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ الْعَبْدَ إِذَا لَعَنَ شَيْئًا صَعِدَتِ اللَّعْنَةُ إِلَى السَّمَاءِ فَتُغْلَقُ أَبْوَابُ السَّمَاءِ دُونَهَا ثُمَّ تَهِبْطُ إِلَى الأَرْضِ فَتُغْلَقُ أَبْوَابُهَا دُونَهَا ثُمَّ تَأْخُذُ يَمِينًا وَشِمَالاً فَإِذَا لَمْ تَجِدْ مَسَاغًا رَجَعَتْ إِلَى الَّذِي لُعِنَ فَإِنْ كَانَ لِذَلِكَ أَهْلاً وَإِلاَّ رَجَعَتْ إِلَى قَائِلِهَا  

The Prophet ﷺ said: Do not invoke Allah's curse, Allah's anger, or Hell.  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ تَلاَعَنُوا بِلَعْنَةِ اللَّهِ وَلاَ بِغَضَبِ اللَّهِ وَلاَ بِالنَّارِ  

I heard the Messenger of Allah (May peace be upon him) say: Men given to cursing will not be witnesses or intercessors.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ لاَ يَكُونُ اللَّعَّانُونَ شُفَعَاءَ وَلاَ شُهَدَاءَ  

A man cursed the wind. The narrator Muslim's version has: The wind snatched away a man's cloak during the time of the Prophet ﷺ and he cursed it. The Prophet ﷺ said: Do not curse it, for it is under command, and if anyone curses a thing undeservedly, the curse returns upon him.  

وَقَالَ مُسْلِمٌ إِنَّ رَجُلاً نَازَعَتْهُ الرِّيحُ رِدَاءَهُ عَلَى عَهْدِ النَّبِيِّ ﷺ فَلَعَنَهَا فَقَالَ النَّبِيُّ ﷺ لاَ تَلْعَنْهَا فَإِنَّهَا مَأْمُورَةٌ وَإِنَّهُ مَنْ لَعَنَ شَيْئًا لَيْسَ لَهُ بِأَهْلٍ رَجَعَتِ اللَّعْنَةُ عَلَيْهِ