ENOfficial
He said that he saw God’s messenger throwing small pebbles at the jamra. Muslim transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْهُ قَالَ: رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَمَى الْجَمْرَةَ بِمِثْلِ حَصَى الْخَذْفِ. رَوَاهُ مُسلم
sunnah.com