Sayyiduna Thawban (may Allah be pleased with him) said: When the Messenger of Allah (peace and blessings be upon him) finished the prayer, he would say «اَسْتَغْفِرُ اللهُ» three times, then he would say: up to «اللّٰهُمَّ أَنْتَ السَّلَامُ ...... تَبَارَكْتَ يَا ذَا الْجَلَالِ وَالْإِكْرَامِ». "O Allah, You are free from all defects and from You is peace. O Possessor of Majesty and Honor, You are greatly blessed."