’Umar said to Sa’d: people complain against you for everything, even for prayer. He replied: I prolong the first two rak’ahs of prayer and make the last two rak’ahs brief; I do not fall short of following the prayer offered by the Messenger of Allah(May peace be upon him). He said: I think so about you. (Using translation from Abū Dāʾūd 803)  

عُمَرُ لِسَعْدٍ «قَدْ شَكَاكَ النَّاسُ فِي كُلِّ شَيْءٍ حَتَّى فِي الصَّلَاةِ» فَقَالَ «أَمُدُّ فِي الْأُولَيَيْنِ وَأَحْذِفُ فِي الْأُخْرَيَيْنِ وَمَا آلُو مَا اقْتَدَيْتُ بِهِ مِنْ صَلَاةِ رَسُولِ اللهِ ﷺ» قَالَ «ذَاكَ الظَّنُّ بِكَ»  

"Some of the peole of Al-Khufah complained about Sa'd to 'Umar. They said: 'By Allah, he does not pray properly.' He said: 'I lead them in prayer as the Messenger of Allah ﷺ did, and I do not deviate from that. I take my time in the first two rak'ahs and make the other two shorter.' He (Umar) said: 'That is what I thought about you.'" (Using translation from Nasāʾī 1003)  

«وَقَعَ نَاسٌ مِنْ أَهْلِ الْكُوفَةِ فِي سَعْدٍ عِنْدَ عُمَرَ» فَقَالُوا وَاللهِ مَا يُحْسِنُ الصَّلَاةَ فَقَالَ «أَمَّا أَنَا فَإِنِّي أُصَلِّي صَلَاةَ رَسُولِ اللهِ ﷺ لَا أَخْرِمُ مِنْهَا أَرْكُدُ فِي الْأُولَيَيْنِ وَأَحْذِفُ فِي الْأُخْرَيَيْنِ» قَالَ «ذَاكَ الظَّنُّ بِكَ»