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ahmad:13577 – ʿAffān > Ḥammād b. Salamah > Thābit > Anas

[Machine] He said, "I have never prayed behind a man who shortened the prayer as much as the Messenger of Allah ﷺ, and the prayer of Abu Bakr was also shortened. But when Umar elongated the Fajr prayer, the Messenger of Allah ﷺ said, ‘When he recites, Allah listens to the one praising Him.’ The Prophet ﷺ then stood up so long that we thought that he would not return to the prostration. He used to sit between the two prostrations until we thought that he had forgotten."  

أحمد:١٣٥٧٧ – حَدَّثَنَا عَفَّانُ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ أَخْبَرَنَا ثَابِتٌ عَنْ أَنَسٍ

أَنَّهُ قَالَ مَا صَلَّيْتُ خَلْفَ رَجُلٍ أَوْجَزَ صَلَاةً مِنْ رَسُولِ اللهِ ﷺ مُتَقَارِبَةً وَكَانَتْ صَلَاةُ أَبِي بَكْرٍ مُتَقَارِبَةً فَلَمَّا كَانَ عُمَرُ مَدَّ فِي صَلَاةِ الْفَجْرِ قَالَ فَكَانَ رَسُولُ اللهِ ﷺ إِذَا قَالَ سَمِعَ اللهُ لِمَنْ حَمِدَهُ قَامَ حَتَّى نَقُولَ قَدْ أَوْهَمَ وَكَانَ يَقْعُدُ بَيْنَ السَّجْدَتَيْنِ حَتَّى نَقُولَ قَدْ أَوْهَمَ  

See similar narrations below:

Collected by Muslim, Abū Dāwūd
muslim:473 – Abū Bakr b. Nāfiʿ al-ʿAbdī > Bahz > Ḥammād > Thābit > Anas

I have never said such a light and perfect prayer as I said behind the Messenger of Allah ﷺ. The prayer of the Messenger. of Allah ﷺ was well balanced. And so too was the prayer of Abu Bakr well balanced. When it was the time of 'Umar b. al-Khattab he prolonged the morning prayer. When the Messenger of Allah ﷺ said: Allah listened to him who praised Him, he stood erect till we said: He has forgotten. He then prostrated and sat between two prostration till we said: He has forgotten.  

مسلم:٤٧٣ – وَحَدَّثَنِي أَبُو بَكْرِ بْنُ نَافِعٍ الْعَبْدِيُّ حَدَّثَنَا بَهْزٌ حَدَّثَنَا حَمَّادٌ أَخْبَرَنَا ثَابِتٌ عَنْ أَنَسٍ قَالَ

مَا صَلَّيْتُ خَلْفَ أَحَدٍ أَوْجَزَ صَلاَةً مِنْ صَلاَةِ رَسُولِ اللَّهِ ﷺ فِي تَمَامٍ كَانَتْ صَلاَةُ رَسُولِ اللَّهِ ﷺ مُتَقَارِبَةً وَكَانَتْ صَلاَةُ أَبِي بَكْرٍ مُتَقَارِبَةً فَلَمَّا كَانَ عُمَرُ بْنُ الْخَطَّابِ مَدَّ فِي صَلاَةِ الْفَجْرِ وَكَانَ رَسُولُ اللَّهِ ﷺ إِذَا قَالَ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ قَامَ حَتَّى نَقُولَ قَدْ أَوْهَمَ ثُمَّ يَسْجُدُ وَيَقْعُدُ بَيْنَ السَّجْدَتَيْنِ حَتَّى نَقُولَ قَدْ أَوْهَمَ  

abudawud:853 – Mūsá b. Ismāʿīl > Ḥammād > Thābit And Ḥumayd > Anas b. Mālik

I did not offer prayer behind anyone more brief than the one offered by the Messenger of Allah ﷺ and that was perfect. When the Messenger of Allah ﷺ 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.  

أبو داود:٨٥٣ – حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ حَدَّثَنَا حَمَّادٌ أَخْبَرَنَا ثَابِتٌ وَحُمَيْدٌ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

مَا صَلَّيْتُ خَلْفَ رَجُلٍ أَوْجَزَ صَلاَةً مِنْ رَسُولِ اللَّهِ ﷺ فِي تَمَامٍ وَكَانَ رَسُولُ اللَّهِ ﷺ إِذَا قَالَ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ قَامَ حَتَّى نَقُولَ قَدْ أَوْهَمَ ثُمَّ يُكَبِّرُ وَيَسْجُدُ وَكَانَ يَقْعُدُ بَيْنَ السَّجْدَتَيْنِ حَتَّى نَقُولَ قَدْ أَوْهَمَ