I and Makhrafah al-Abdi imported some garments from Hajar, and brought them to Mecca. The Messenger of Allah ﷺ came to us walking, and after he had bargained with us for some trousers, we sold them to him. There was a man who was weighing for payment. The Messenger of Allah ﷺ said to him: Weigh out and give overweight.  

جَلَبْتُ أَنَا وَمَخْرَمَةُ الْعَبْدِيُّ بَزًّا مِنْ هَجَرَ فَأَتَيْنَا بِهِ مَكَّةَ فَجَاءَنَا رَسُولُ اللَّهِ ﷺ يَمْشِي فَسَاوَمَنَا بِسَرَاوِيلَ فَبِعْنَاهُ وَثَمَّ رَجُلٌ يَزِنُ بِالأَجْرِ فَقَالَ لَهُ رَسُولُ اللَّهِ ﷺ زِنْ وَأَرْجِحْ  

Abu Safwan said: I came to the Messenger of Allah ﷺ 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". Abu Dawud sad: Qais also transmitted it as Sufyan said: The version of Sufyan is authoritative.  

أَتَيْتُ رَسُولَ اللَّهِ ﷺ بِمَكَّةَ قَبْلَ أَنْ يُهَاجِرَ بِهَذَا الْحَدِيثِ وَلَمْ يَذْكُرْ يَزِنُ بِالأَجْرِ  

I heard my father say: A man said to Shu'bah: Sufyan opposed you (i.e. narrated a tradition which differs from your version). He replied: You racked my mind. I have been told that Yahya b. Ma'in said: If anyone opposes Sufyan, the version of Sufyan will be acceptable.  

كُلُّ مَنْ خَالَفَ سُفْيَانَ فَالْقَوْلُ قَوْلُ سُفْيَانَ  

The memory of Sufyan was stronger than mine.  

كَانَ سُفْيَانُ أَحْفَظَ مِنِّي