Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The mirror in a dream indicates vanity, imagination, and the wife. For a pregnant woman to look in it indicates she will give birth to a female who resembles her. For a man, it indicates the arrival of an absent person or a friend in whom he sees himself.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The mirror indicates the wife. Whatever good or bad is seen in it reflects on her. A rusty mirror is the bad state of the wife. A mirror of silver indicates the loss of prestige, and one of gold indicates wealth after poverty.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The mirror is interpreted as prestige and authority. If he sees his face beautiful in it, his situation will improve. If he sees it ugly, his situation will worsen. Whoever sees himself looking into a broken mirror will separate from his wife.