Hadith 959
Mishkat al-Masabih
Prayer · Making Mention of God after the Prayer - Section 1
Arabic
عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: كُنْتُ أَعْرِفُ انْقِضَاءَ صَلَاةِ رَسُولِ اللَّهِ صَلَّى الله عَلَيْهِ وَسلم بِالتَّكْبِيرِ
English translation
Ibn ‘Abbas said he used to know that God’s Messenger had finished his prayer when he heard the takbir. (Bukhari and Muslim.)