Sunan Abi Dawud, Book 3, Hadith 852 (USC-MSA) ⓘ

Anas b. Malik said: I did not offer prayer behind anyone more brief than the one offered by the Messenger of Allah and that was perfect. When the Messenger of Allah said: “Allah listens to him who praises Him,” he stood long we thought that he had omitted something; then he say takbir(Allah is most great) and prostrate, and would sit between the two prostrations so long that we thought that he had omitted something.

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، أَخْبَرَنَا ثَابِتٌ، وَحُمَيْدٌ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ مَا صَلَّيْتُ خَلْفَ رَجُلٍ أَوْجَزَ صَلاَةً مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي تَمَامٍ وَكَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا قَالَ ‏ "‏ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ ‏" ‏ ‏.‏ قَامَ حَتَّى نَقُولَ قَدْ أَوْهَمَ ثُمَّ يُكَبِّرُ وَيَسْجُدُ وَكَانَ يَقْعُدُ بَيْنَ السَّجْدَتَيْنِ حَتَّى نَقُولَ قَدْ أَوْهَمَ ‏.‏