حَدَّثَنَا جَمِيلُ بْنُ الْحَسَنِ بْنِ جَمِيلٍ الْعَتَكِيُّ، حَدَّثَنَا عَبْدُ الأَعْلَى، حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ سَمُرَةَ بْنِ جُنْدُبٍ، قَالَ سَكْتَتَانِ حَفِظْتُهُمَا عَنْ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ ‏.‏ فَأَنْكَرَ ذَلِكَ عِمْرَانُ بْنُ الْحُصَيْنِ فَكَتَبْنَا إِلَى أُبَىِّ بْنِ كَعْبٍ بِالْمَدِينَةِ فَكَتَبَ أَنَّ سَمُرَةَ قَدْ حَفِظَ ‏.‏ قَالَ سَعِيدٌ فَقُلْنَا لِقَتَادَةَ مَا هَاتَانِ السَّكْتَتَانِ قَالَ إِذَا دَخَلَ فِي صَلاَتِهِ وَإِذَا فَرَغَ مِنَ الْقِرَاءَةِ ‏.‏ ثُمَّ قَالَ بَعْدُ وَإِذَا قَرَأَ ‏ Begin hadith 9‏ ‏.‏ قَالَ وَكَانَ يُعْجِبُهُمْ إِذَا فَرَغَ مِنَ الْقِرَاءَةِ أَنْ يَسْكُتَ حَتَّى يَتَرَادَّ إِلَيْهِ نَفَسُهُ ‏.‏

It wasnarrated that Samurah bin Jundab said: “There are two pauseswhich I memorized from the Messenger of Allah (PBUH), but `Imran binHusain denied that. We wrote to Ubayy bin Ka`b in Al-Madinah, andhewrote that Samurah had indeed memorized them.” (One of the narrators) Sa`eed said: "We said to Qatadah: 'What are these two pauses?' He said: 'When he started his prayer, and when he finished reciting.' Then later he said: 'And when he recited: 'Not (the way) of those who earned your anger, nor of those who went astray.' They used to like (for the Imam) when he had finished reciting to remain silent until he had caught his breath.'" Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 844
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 844