Riyad as-Salihin, 1556

Abud-Darda' (May Allah be pleased with him) said:

The Messenger of Allah (ﷺ) said, "When a person curses somebody or something, the curse goes up to heaven and the gates of heaven get closed. Then it comes down to the earth and its gates get closed. Then it turns right and left, and if it does not find an entrance to go anywhere, it returns to the person or thing that was cursed; if he or it deserves to be cursed; otherwise it returns to the person who uttered it." [Abu Dawud].

وعن أبي الدرداء رضي الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم ‏:‏ ‏

‏إن العبد إذا لعن شيئًا، صعدت اللعنة إلى السماء، فتغلق أبواب السماء دونها، ثم تهبط إلى الأرض، فتغلق أبوابها دونها، ثم تأخذ يمينًا وشمالا، فإذا لم تجد مساغًا رجعت إلى الذي لُعن، فإن كان أهلا لذلك، وإلا رجعت إلى قائلها‏

‏‏.‏ رواه أبو داود.

References1 variant

In-Book Reference: Book 17, Hadith 46

Sharh · explanationclick to expand

Guidance from the Hadith: 1) A stern warning for the one who curses someone who does not deserve to be cursed, for whoever does this will have his curse rebounded to him. 2) One must not accustom his tongue to cursing because it is a destructive sin that renders deeds worthless.