[Machine] The Messenger of Allah ﷺ would not sit after prayer except for the amount of time it takes to say "O Allah, you are the peace, and peace comes from you. Blessed are you, O Possessor of Majesty and Honor."  

كَانَ رَسُولُ اللهِ ﷺ لَا يَجْلِسُ بَعْدَ الصَّلَاةِ إِلَّا بِقَدْرِ مَا يَقُولُ اللهُمَّ أَنْتَ السَّلَامُ وَمِنْكَ السَّلَامُ تَبَارَكْتَ يَا ذَا الْجَلَالِ وَالْإِكْرَامِ  

[Machine] Thawban, the freed slave of the Messenger of Allah ﷺ, narrated: When the Messenger of Allah ﷺ finished his prayer, he would seek forgiveness three times, then he would say: "O Allah, You are peace and from You is peace. Blessed are You, O Possessor of majesty and honor." Then Abu Abdullah Al-Hafiz narrated to us, who informed us that Abu Bakr ibn Abdullah informed him that Al-Hasan ibn Sufyan informed him that Dawud ibn Rushayd informed him that Al-Walid ibn Muslim informed him that Al-Awza'i heard from Abu Ammar, who heard from Abu Asma'ah, who heard from Thawban, and he mentioned the Hadith in a similar manner except that it contains the addition: "And to You is peace. Blessed are You, O Possessor of majesty and honor." Al-Walid said: I said to Al-Awza'i, "And how is seeking forgiveness done?" He said: One says: "I seek forgiveness from Allah, I seek forgiveness from Allah."  

حَدَّثَنِي ثَوْبَانُ مَوْلَى رَسُولِ اللهِ ﷺ قَالَ كَانَ رَسُولُ اللهِ ﷺ إِذَا أَرَادَ أَنْ يَنْصَرِفَ مِنْ صَلَاتِهِ اسْتَغْفَرَ ثَلَاثَ مَرَّاتٍ ثُمَّ قَالَ اللهُمَّ أَنْتَ السَّلَامُ وَمِنْكَ السَّلَامُ تَبَارَكْتَ يَا ذَا الْجَلَالِ وَالْإِكْرَامِ 3007 وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ أَخْبَرَنِي أَبُو بَكْرِ بْنُ عَبْدِ اللهِ أنبأ الْحَسَنُ بْنُ سُفْيَانَ ثنا دَاوُدُ بْنُ رُشَيْدٍ ثنا الْوَلِيدُ بْنُ مُسْلِمٍ ثنا الْأَوْزَاعِيُّ عَنْ أَبِي عَمَّارٍ عَنْ أَبِي أَسْمَاءَ عَنْ ثَوْبَانَ فَذَكَرَ الْحَدِيثَ بِنَحْوِهِ إِلَّا أَنَّهُ زَادَ وَإِلَيْكَ السَّلَامُ تَبَارَكْتَ يَا ذَا الْجَلَالِ وَالْإِكْرَامِ قَالَ الْوَلِيدُ قُلْتُ لِلْأَوْزَاعِيِّ وَكَيْفَ الِاسْتِغْفَارُ؟ قَالَ يَقُولُ أَسْتَغْفِرُ اللهَ أَسْتَغْفِرُ اللهَ