Sahih Muslim Book - 5, Hadith - 1363

حَدَّثَنِى إِسْحَاقُ بْنُ مَنْصُورٍ أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُبَارَكِ الصُّورِىُّ حَدَّثَنَا مُعَاوِيَةُ بْنُ سَلاَّمٍ عَنْ يَحْيَى بْنِ أَبِى كَثِيرٍ أَخْبَرَنِى عَبْدُ اللَّهِ بْنُ أَبِى قَتَادَةَ أَنَّ أَبَاهُ أَخْبَرَهُ قَالَ بَيْنَمَا نَحْنُ نُصَلِّى مَعَ رَسُولِ اللَّهِ -صلى الله عليه وسلم- فَسَمِعَ جَلَبَةً. فَقَالَ « مَا شَأْنُكُمْ ». قَالُوا اسْتَعْجَلْنَا إِلَى الصَّلاَةِ. قَالَ « فَلاَ تَفْعَلُوا إِذَا أَتَيْتُمُ الصَّلاَةَ فَعَلَيْكُمُ السَّكِينَةُ فَمَا أَدْرَكْتُمْ فَصَلُّوا وَمَا سَبَقَكُمْ فَأَتِمُّوا ».

'Abdullah bin Abi Qatadah narrated that his father told him: "While we were praying with the Messenger of Allah (s.a.w), he heard a clamor and said: 'What is the matter with you?' They said: 'We were hastening to prayers.' He said: 'Do not do that. When you come to prayer, come in a tranquil manner. Whatever you catch up with, pray, and whatever you miss, complete it."'