In a dream it signifies rest and provision, and also evil befalling the one who drinks it. If the dreamer is unmarried, he may be one who makes divorced women lawful [again for their former husbands, i.e. a muhallil].
Dream meaning · al-Nabulsi
Subya (fermented rice drink) سوبيا
Source: al-Nabulsi, Ta'tir al-Anam fi Ta'bir al-Manam, p. 174. English translation by iDreamBot. Quran verses: Quran.com, Saheeh International.