1560 – Abu Hurayrah (may Allah be pleased with him) reported that the Messenger of Allah (peace and blessings be upon him) said, “It is not fitting for a ṣiddīq—a truly truthful believer—to be someone who curses.” Related by Muslim.
1561 – Abu al-Dardāʾ (may Allah be pleased with him) said: the Messenger of Allah (peace and blessings be upon him) stated, “Those who curse will neither act as intercessors nor as witnesses on the Day of Resurrection.” Related by Muslim.
1562 – Samura ibn Jundub (may Allah be pleased with him) reported that the Messenger of Allah (peace and blessings be upon him) said, “Do not curse one another by invoking Allah’s curse, nor His wrath, nor the Fire.” Related by Abū Dāwūd and al-Tirmidhī, who graded it ḥasan ṣaḥīḥ.
1563 – Ibn Masʿūd (may Allah be pleased with him) said: the Messenger of Allah (peace and blessings be upon him) said, “A believer is not given to reviling, nor to cursing, nor to obscene speech, nor to vulgar language.” Related by al-Tirmidhī, who declared it ḥasan.
1564 – Abu al-Dardāʾ (may Allah be pleased with him) said: the Messenger of Allah (peace and blessings be upon him) said, “When a servant utters a curse, the curse rises up to heaven, but the gates of heaven are shut against it. It then descends to the earth, and the gates of the earth are shut against it. It turns to the right and to the left, and if it finds no outlet (1) it returns to the one who was cursed: if that person deserves it, it befalls him; otherwise it falls back upon the one who uttered it.” Related by Abū Dāwūd (2).
1565 – ʿImrān ibn Ḥuṣayn (may Allah be pleased with them both) reported: While the Messenger of Allah (peace and blessings be upon him) was on a journey, a woman from the Anṣār was riding a camel. She became impatient (3) and cursed it. The Messenger of Allah (peace and blessings be upon him) heard this and said, “Unload whatever is on it and release it, for it has become cursed.” ʿImrān added, “I can still see it now, walking among the people and no one giving it any attention.” Related by Muslim.