I think he said for the fifth time: If he drinks it, kill him.

Abu Dawud said: And similarly the word “a fifth time” occurs in the tradition of Abu Ghutaif.
Sunan Abi Dawud Book 40, Hadith 133
← Previous Hadith The Prophet (ﷺ) said: If they (the people) drink wine, flog them, again if they drink it, flog them. Again if they drink it, kill them.

Sunan Abi Dawud Book 40, Hadith 132 Next Hadith → The Prophet (ﷺ) said: If he is intoxicated, flog him; again if he is intoxicated, flog him; again if he is intoxicated, flog him if he does it again a fourth time, kill him.

Abu Dawud said: And there is a similar tradition of Umar ibn AbuSalamah, from his father, on the authority of AbuHurayrah, from the Prophet (ﷺ): If he drinks wine, flog him if he does it so again, a fourth time, kill him.

Abu Dawud said: And there is similar tradition of Suhail from Abu Salih on the authority of Abu Hurairah, from the Prophet (ﷺ): It they drink a fourth time, kill them. And there is similar tradition of Ibn Abi Nu'm on the authority of Ibn 'Umar from Prophet (ﷺ). There is also similar tradition of 'Abd Allah b. 'Amr from the Prophet (ﷺ), and from Sharid from the Prophet (ﷺ). And in the tradition of al-Jadli from Mu'awiyah, the Prophet (ﷺ) said: If he does so again third or fourth time, kill him.

Sunan Abi Dawud Book 40, Hadith 134