There is none among the companions of the Prophet ﷺ who has narrated more Hadiths than I except ʿAbdullah bin ʿAmr (bin Al-ʿAs) who used to write them and I never did the same. (Using translation from Bukhārī 113)
سَمِعْتُ أَبَا هُرَيْرَةَ يَقُولُ «مَا كَانَ أَحَدٌ أَكْثَرَ حَدِيثًا مِنِّي عَنْ رَسُولِ اللهِ ﷺ إِلَّا مَا كَانَ مِنْ عَبْدِ اللهِ بْنِ عَمْرٍو فَإِنَّهُ كَانَ يَكْتُبُ وَكُنْتُ لَا أَكْتُبُ»