Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
A wedding and celebration in a dream indicate calamity and death if there is amusement, music, and dancing. If it is without these, it is joy and goodness. Attending a wedding indicates participation in a calamity.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
A wedding indicates worry, grief, and crying. Whoever sees himself as a groom but does not see his bride will die or kill someone. A wedding in a house with a sick person indicates his death.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
A wedding is interpreted as worry and sadness. If it does not involve any amusement or music, it is goodness, joy, and blessing.