[Machine] Sufyan used to write the hadith at night on the wall, then he would erase it in the morning.
«كَانَ سُفْيَانُ يَكْتُبُ الْحَدِيثَ بِاللَّيْلِ فِي الْحَائِطِ فَإِذَا أَصْبَحَ نَسَخَهُ ثُمَّ حَكَّهُ»
[Machine] Sufyan used to write the hadith at night on the wall, then he would erase it in the morning.
«كَانَ سُفْيَانُ يَكْتُبُ الْحَدِيثَ بِاللَّيْلِ فِي الْحَائِطِ فَإِذَا أَصْبَحَ نَسَخَهُ ثُمَّ حَكَّهُ»