I remember two period of silence in prayer, one when the imam said the takbir; and one when he finished reciting the Fatihah and the surah when he was about to bow. But Imran ibn Husayn took it as something strange. So they wrote about it to Ubayy (ibn Ka'b) in Medina. He verified the statement of Samurah. Abu Dawud said: Humaid also narrated in this tradition the words "and one period silence when he finished the recitation (of the Qur'an)"  

سَمُرَةُ حَفِظْتُ سَكْتَتَيْنِ فِي الصَّلاَةِ سَكْتَةً إِذَا كَبَّرَ الإِمَامُ حَتَّى يَقْرَأَ وَسَكْتَةً إِذَا فَرَغَ مِنْ فَاتِحَةِ الْكِتَابِ وَسُورَةٍ عِنْدَ الرُّكُوعِ قَالَ فَأَنْكَرَ ذَلِكَ عَلَيْهِ عِمْرَانُ بْنُ حُصَيْنٍ قَالَ فَكَتَبُوا فِي ذَلِكَ إِلَى الْمَدِينَةِ إِلَى أُبَىٍّ فَصَدَّقَ سَمُرَةَ  

The Prophet ﷺ had two periods of silence; when he began his prayer and when he finished the recitation (of the Qur’an). He then narrated the tradition like the version of Yunus.  

عَنِ النَّبِيِّ ﷺ أَنَّهُ كَانَ يَسْكُتُ سَكْتَتَيْنِ إِذَا اسْتَفْتَحَ وَإِذَا فَرَغَ مِنَ الْقِرَاءَةِ كُلِّهَا فَذَكَرَ مَعْنَى حَدِيثِ يُونُسَ  

Samurah ibn Jundub and Imran ibn Husayn had a discussion (about the periods of silence in prayer). Samurah then said that he remembered two periods of silence from the Messenger of Allah ﷺ; one when he uttered the takbir and the other when he finished reciting: "Not of those with whom Thou art angry, nor of those who go astray" (i.7). Samurah remembered that, but Imran ibn Husayn rejected it. Then they wrote about it to Ubayy ibn Ka'b. He wrote a letter to them and gave a reply to them that Samurah remembered correctly.  

عَنْ رَسُولِ اللَّهِ ﷺ سَكْتَتَيْنِ سَكْتَةً إِذَا كَبَّرَ وَسَكْتَةً إِذَا فَرَغَ مِنْ قِرَاءَةِ { غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلاَ الضَّالِّينَ } فَحَفِظَ ذَلِكَ سَمُرَةُ وَأَنْكَرَ عَلَيْهِ عِمْرَانُ بْنُ حُصَيْنٍ فَكَتَبَا فِي ذَلِكَ إِلَى أُبَىِّ بْنِ كَعْبٍ وَكَانَ فِي كِتَابِهِ إِلَيْهِمَا أَوْ فِي رَدِّهِ عَلَيْهِمَا أَنَّ سَمُرَةَ قَدْ حَفِظَ  

I remember from the Messenger of Allah ﷺ two periods of silence. Sa'id said: We asked Qatadah: What are those two periods of silence? He said: (one) when he began his prayer, and (one) when he finished the recitation. Then he added: When he finished reciting (the closing verse of the Fatihah): "Not of those with whom Thou art angry, nor of who go astray."  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ فِيهِ قَالَ سَعِيدٌ قُلْنَا لِقَتَادَةَ مَا هَاتَانِ السَّكْتَتَانِ قَالَ إِذَا دَخَلَ فِي صَلاَتِهِ وَإِذَا فَرَغَ مِنَ الْقِرَاءَةِ ثُمَّ قَالَ بَعْدُ وَإِذَا قَالَ { غَيْرِ الْمَغْضُوبِ عَلَيْهِمْ وَلاَ الضَّالِّينَ }  

The Messenger of Allah ﷺ kept silence between the takbir and the recitation of Qur’an. So I asked him, for whom I would give my father and mother as ransom: What do you say during you period of silence between the takbir and the recitation? He replied (that he said): O Allah, purify me from sins as a white garment is purified from filth. O Allah, wash away my sings with snow, water and hail.  

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا كَبَّرَ فِي الصَّلاَةِ سَكَتَ بَيْنَ التَّكْبِيرِ وَالْقِرَاءَةِ فَقُلْتُ لَهُ بِأَبِي أَنْتَ وَأُمِّي أَرَأَيْتَ سُكُوتَكَ بَيْنَ التَّكْبِيرِ وَالْقِرَاءَةِ أَخْبِرْنِي مَا تَقُولُ قَالَ اللَّهُمَّ بَاعِدْ بَيْنِي وَبَيْنَ خَطَايَاىَ كَمَا بَاعَدْتَ بَيْنَ الْمَشْرِقِ وَالْمَغْرِبِ اللَّهُمَّ أَنْقِنِي مِنْ خَطَايَاىَ كَالثَّوْبِ الأَبْيَضِ مِنَ الدَّنَسِ اللَّهُمَّ اغْسِلْنِي بِالثَّلْجِ وَالْمَاءِ وَالْبَرَدِ