(Imām Bukhārī narrates): Sulaimān ibn Harb narrated to us, he said: Hammād ibn Zaid narrated to us, from Thābit, from Anas, may Allāh be pleased with him, he said:
Indeed, I do not fall short at all in leading you in prayer from the way in which I saw the Prophet ﷺ leading us in prayer. Thābit said: Anas used to do something in his prayer which I did not see you doing: when he raised his head from rukū', he would remain standing until someone would say that he had forgotten; and he would sit between the two sajdahs for so long that someone would say that he had forgotten.
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، قَالَ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ إِنِّي لاَ آلُو أَنْ أُصَلِّيَ بِكُمْ كَمَا رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم يُصَلِّي بِنَا. قَالَ ثَابِتٌ كَانَ أَنَسٌ يَصْنَعُ شَيْئًا لَمْ أَرَكُمْ تَصْنَعُونَهُ، كَانَ إِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ قَامَ حَتَّى يَقُولَ الْقَائِلُ قَدْ نَسِيَ. وَبَيْنَ السَّجْدَتَيْنِ حَتَّى يَقُولَ الْقَائِلُ قَدْ نَسِيَ.
Reference: Sahih Al Bukhari 821