“The Prophet ﷺ passed by a man who was praying when the Iqamah for Subh prayer had been called, and he said something to him, I do not know what he said. When he finished, we surrounded the man and asked him: ‘What did the Messenger of Allah ﷺ say to you?’ He said: ‘He said to me: “Soon one of you will pray Fajr with four Rak’ah.’” (Using translation from Ibn Mājah 1153)
مَرَّ رَسُولُ اللهِ ﷺ بِرَجُلٍ وَقَدْ أُقِيمَ فِي الصَّلَاةِ وَهُوَ يُصَلِّي الرَّكْعَتَيْنِ قَبْلَ الْفَجْرِ فَقَالَ لَهُ شَيْئًا لَا نَدْرِي مَا هُوَ فَلَمَّا انْصَرَفْنَا أَحَطْنَا بِهِ نَقُولُ مَاذَاقَالَ لَكَ رَسُولُ اللهِ؟ قَالَ قَالَ لِي يُوشِكُ أَحَدُكُمْ أَنْ يُصَلِّيَ الصُّبْحَ أَرْبَعًا