[Machine] I knew that the Prophet's prayer ended with the takbeer. 'Amr ibn Dinar said, "Then I mentioned it to Abu Ma'bad and he said, 'I did not inform you about it.' 'Amr said, 'But he had informed me about it, and he was one of the most truthful followers of Ibn 'Abbas.'" Ash-Shafi'i said, "It seems that he had forgotten it after he had informed him about it."
كُنْتُ أَعْرِفُ انْقِضَاءَ صَلَاةِ رَسُولِ اللهِ ﷺ بِالتَّكْبِيرِ قَالَ عَمْرُو بْنُ دِينَارٍ ثُمَّ ذَكَرْتُهُ لِأَبِي مَعْبَدٍ بَعْدُ فَقَالَ لَمْ أُحَدِّثْكُمْ بِهِ قَالَ عَمْرٌو وَقَدْ حَدَّثَنِيهِ وَكَانَ مِنْ أَصْدَقِ مَوَالِي ابْنِ عَبَّاسٍ قَالَ الشَّافِعِيُّ كَأَنَّهُ نَسِيَهُ بَعْدَمَا حَدَّثَهُ إِيَّاهُ