Musannaf Ibn Abi Shaybah 25591 — Mixing unripe dates, dates

It is narrated from Abu Mus'ab al-Madani that he said: I heard Sayyiduna Abu Hurayrah (may Allah be pleased with him) saying: When the order prohibiting khamr (wine) came, the people would take semi-ripe dates and cut away from them every mudhannab (a date ripened at the tail end). Then they would take the semi-ripe dates, split them down the middle, place them in water, and then drink it.