One who vomits wine: what is due from him?

Malik bin Umayr al-Hanafi said that a son of Maz'un who had drunk wine was brought to Sayyiduna Umar (may Allah be pleased with him). He asked: "Who are your witnesses?" He said: "So-and-so, so-and-so, and Attab bin Salamah." Attab was called by the title of al-Shaykh al-Saduq (the truthful elder). He said: "I saw him vomiting it, but I did not see him drinking it." So Sayyiduna Umar (may Allah be pleased with him) applied the prescribed punishment (hadd) to him.

Attab bin Salamah said that Sayyiduna Umar (may Allah be pleased with him) applied the prescribed punishment (hadd) to him and stood him up before the people, except that he said: Hafs bin Umar was brought.