Sahih al-Bukhari 770
Sahih al-Bukhari · Book 10: Call to Prayers (Adhaan) · Prolonging the first two Rak'a and shortening the last two
Narrated Jabir bin Samura:
حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ ، قَالَ حَدَّثَنَا شُعْبَةُ ، عَنْ أَبِي عَوْنٍ ، قَالَ سَمِعْتُ جَابِرَ بْنَ سَمُرَةَ ، قَالَ قَالَ عُمَرُ لِسَعْدٍ لَقَدْ شَكَوْكَ فِي كُلِّ شَىْءٍ حَتَّى الصَّلاَةِ. قَالَ أَمَّا أَنَا فَأَمُدُّ فِي الأُولَيَيْنِ، وَأَحْذِفُ فِي الأُخْرَيَيْنِ، وَلاَ آلُو مَا اقْتَدَيْتُ بِهِ مِنْ صَلاَةِ رَسُولِ اللَّهِ صلى الله عليه وسلم. قَالَ صَدَقْتَ، ذَاكَ الظَّنُّ بِكَ، أَوْ ظَنِّي بِكَ.
`Umar said to Sa`d, "The people complained against you in everything, even in prayer." Sa`d replied, "Really I used to prolong the first two rak`at and shorten the last two and I will never shorten the prayer in which I follow Allah's Messenger (ﷺ)." `Umar said, "You are telling the truth and that is what I think a tout you."