Ibn Majah

Benefits and Issues:
➊
The meaning of "misfortune" (nahusat) is to assume about something that no benefit can come from it; there is only the risk of harm. This is an incorrect notion. Some people say: "Ever since I married this woman, my business has only suffered losses," or "Ever since I started living in this house, someone or the other is always sick." Sometimes, a thing or person is considered the cause of harm or difficulty, even though they have no involvement in it. These superstitions are contrary to Islamic teachings.

➋
If Allah, the Exalted, places benefits for a person in something or someone, then this is blessing (barakah) and Allah’s mercy.

➌
Misfortune (nahusat) or blessing (barakah) can also refer to the comfort or hardship that a person receives from something or someone. For example: if a woman is of good character, obedient, and well-mannered, then this is mercy and blessing. If she is foul-mouthed, disobedient, and ill-mannered, then this is misfortune. Similarly, if a horse is healthy, swift, and obedient to its owner, then it is blessed. If it is stubborn and defiant, then it is a source of trouble. If a house is spacious and the neighbors are good, then it is blessed; otherwise, it is a cause of discomfort. In this way, comfort or difficulty can be found in anything. However, these three things are encountered most frequently, so their qualities and flaws are more often the cause of a person’s comfort or distress.

Explanation:
1:
The misfortune (nahusat) of a woman is that she is sharp-tongued or ill-tempered;
the misfortune of a horse is that it kicks and bites; and the misfortune of a house is that the neighbors are not good,
or that it is not comfortable in terms of heat and cold.

Note 1: (In this narration, the phrase (al-shu’m fi ...) is rare (shadh);
the wording found in the two Sahihs (Sahih al-Bukhari and Sahih Muslim) is correct, which is (in kana al-shu’m fa-fi ...), meaning: “If misfortune were to exist, it would be in these three things.”
(al-Sahihah: 443, 799, 1897)

Note 2: (In the narrations, this wording is more authentic, as has preceded in the footnote.)