"Once the Prophet ﷺ offered five rakʿat in Zuhr prayer. He was asked, "Is there an increase in the prayer?" The Prophet ﷺ said, "And what is it?" They said, "You have prayed five rakʿat.' So he bent his legs and performed two prostrations (of Sahu). (Using translation from Bukhārī 404)  

«صَلَّى النَّبِيُّ ﷺ الظُّهْرَ خَمْسًا» فَقِيلَ لَهُ أَزِيدَ فِي الصَّلَاةِ؟ قَالَ «وَمَا ذَاكَ؟» قَالُوا صَلَّيْتَ خَمْسًا فَثَنَى رِجْلَهُ وَسَجَدَ سَجْدَتَيْنِ  

The Prophet ﷺ led them in praying Zuhr with five (rak'ahs). They said: 'You prayed five.' So he prostrated twice after he had said the taslim, while he was sitting. (Using translation from Nasāʾī 1255)  

عَنِ النَّبِيِّ ﷺ أَنَّهُ صَلَّى بِهِمُ الظُّهْرَ خَمْسًا فَقَالُوا إِنَّكَ صَلَّيْتَ خَمْسًا «فَسَجَدَ سَجْدَتَيْنِ بَعْدَمَا سَلَّمَ وَهُوَ جَالِسٌ»  

[Machine] It is narrated that the Prophet ﷺ performed five prayers and some people whispered to each other, saying, "Should we increase in our prayers?" He said, "No." So they informed him, and he then bent his legs and made two prostrations and said, "I am only a human being; I forget as you forget."  

عَنِ النَّبِيِّ ﷺ أَنَّهُ صَلَّى خَمْسًا فَوَسْوَسَ الْقَوْمُ بَعْضُهُمْ إِلَى بَعْضٍ فَقَالُوا لَهُ أَزِيدَ فِي الصَّلَاةِ؟ فَقَالَ «لَا» فَأَخْبَرُوهُ فَثَنَى رِجْلَيْهِ فَسَجَدَ سَجْدَتَيْنِ ثُمَّ قَالَ «إِنَّمَا أَنَا بِشْرٌ أَنْسَى كَمَا تَنْسَوْنَ»  

[Machine] And I heard the judge saying Al-Hakim prayed five times.  

وَسَمِعْتُ الْحَكَمَ يَقُولُ كَانَ عَلْقَمَةَ صَلَّى خَمْسًا  

"Thaqif welcomed 'Umar with a drink. He called for it, but when he brought it close to his mouth, he did not like it. He called for water to weaken it, and said: 'Do like this.'" (Using translation from Nasāʾī 5706)   

وَقَالَ هَكَذَا فَعَلَ رَسُولُ اللهِ ﷺ  

The Messenger of Allah ﷺ offered one of the afternoon prayers with five (rak'ahs), and it was said to him: "Has something been added to the prayer?" He said: 'Why are you asking?' They said: 'You prayed five.' He said: 'I am only human, I forget as you forget, and I remember as you remember.' Then he prostrated twice then ended his prayer. (Using translation from Nasāʾī 1259)  

أَنَّ رَسُولَ اللهِ ﷺ صَلَّى إِحْدَى صَلَاتِي الْعَشِيِّ خَمْسًا فَقِيلَ لَهُ أَزِيدَ فِي الصَّلَاةِ؟ فَقَالَ «وَمَا ذَاكَ؟» قَالُوا صَلَّيْتَ خَمْسًا قَالَ «إِنَّمَا أَنَا بِشْرٌ أَنْسَى كَمَا تَنْسَوْنَ وَأَذْكُرُ كَمَا تَذْكُرُونَ» فَسَجَدَ سَجْدَتَيْنِ ثُمَّ انْفَتَلَ