The Messenger of Allah ﷺ used to recite: "In the name of Allah, the Cherisher and Sustainer of the worlds; most Gracious, most Merciful; Master of the Day of Judgment," breaking its recitation into verses, one after another. Abu Dawud said: I heard Ahmad (b. Hanbal) say: The early reading is: Maliki yawmi'l-din.
أَنَّهَا ذَكَرَتْ أَوْ كَلِمَةً غَيْرَهَا قِرَاءَةَ رَسُولِ اللَّهِ ﷺ { بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيمِ * الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ * الرَّحْمَنِ الرَّحِيمِ * مَلِكِ يَوْمِ الدِّينِ } يَقْطَعُ قِرَاءَتَهُ آيَةً آيَةً