The Messenger of Allah ﷺ came upon him (during their stay) at al-Hudaybiyyah. He then narrated the rest of the tradition. This version adds: "He asked: Do you have a sacrificial animal? He replied: No. He then said: Fast three days or give three sa's of dates to six poor people, giving one sa' to every two persons."
أَنَّ رَسُولَ اللَّهِ ﷺ مَرَّ بِهِ زَمَنَ الْحُدَيْبِيَةِ فَذَكَرَ الْقِصَّةَ فَقَالَ أَمَعَكَ دَمٌ قَالَ لاَ قَالَ فَصُمْ ثَلاَثَةَ أَيَّامٍ أَوْ تَصَدَّقْ بِثَلاَثَةِ آصُعٍ مِنْ تَمْرٍ عَلَى سِتَّةِ مَسَاكِينَ بَيْنَ كُلِّ مِسْكِينَيْنِ صَاعٌ