[Machine] The Prophet ﷺ used to remain silent when he entered prayer and when he finished reciting. Imran ibn Husayn disapproved of this and they wrote to Ubay ibn Ka'b. He replied to them saying that Samurah was telling the truth. Abu Muhammad says Qatadah used to say three silences, and in the raised narration, there are two silences.
أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَسْكُتُ سَكْتَتَيْنِ إِذَا دَخَلَ فِي الصَّلَاةِ وَإِذَا فَرَغَ مِنَ الْقِرَاءَةِ فَأَنْكَرَ ذَلِكَ عِمْرَانُ بْنُ حُصَيْنٍ فَكَتَبُوا إِلَى أُبَيِّ بْنِ كَعْبٍ فَكَتَبَ إِلَيْهِمْ أَنْ قَدْ صَدَقَ سَمُرَةُ قَالَ أَبُو مُحَمَّدٍ كَانَ قَتَادَةُ يَقُولُ ثَلَاثُ سَكَتَاتٍ وَفِي الْحَدِيثِ الْمَرْفُوعِ سَكْتَتَانِ