Seeing it in a dream points to joys and happiness [surur]. If he is sick, his illness will be lifted from him [surriya 'anhu]. It may indicate wealth after poverty, might after humiliation, one trade on top of another, one position on top of another, or a riding animal; and if the dreamer is fit to travel, he will travel [sara] and press on in his journey. A wife or a concubine may indicate an oath, because people swear by divorce and by freeing slaves.
Dream meaning · al-Nabulsi
Taking a concubine (tasarri) تسرى
Source: al-Nabulsi, Ta'tir al-Anam fi Ta'bir al-Manam, p. 46. English translation by iDreamBot. Quran verses: Quran.com, Saheeh International.