Abu Dawud Book 16, Hadith Number 3331.

Narated By AbuSafwan ibn Umayrah : (The tradition mentioned above (No. 3330) has also been transmitted by AbuSafwan ibn Umayrah through a different chain of narrators.)

This version has: AbuSafwan said: I came to the Apostle of Allah (PBUH) at Mecca before his immigration. He then narrated the rest of the tradition, but he did not mention the words “who was weighing for payment”.