To recite two Surah in one Rak'a and to recite the last verses of some Surah, or to elite the Surah in their reverse order, or to recite the beginning of a Surah

وَالْقِرَاءَةِ بِالْخَوَاتِيمِ، وَبِسُورَةٍ قَبْلَ سُورَةٍ، وَبِأَوَّلِ سُورَةٍ. وَيُذْكَرُ عَنْ عَبْدِ اللَّهِ بْنِ السَّائِبِ قَرَأَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْمُؤْمِنُونَ فِي الصُّبْحِ حَتَّى إِذَا جَاءَ ذِكْرُ مُوسَى وَهَارُونَ أَوْ ذِكْرُ عِيسَى، أَخَذَتْهُ سَعْلَةٌ فَرَكَعَ. وَقَرَأَ عُمَرُ فِي الرَّكْعَةِ الأُولَى بِمِائَةٍ وَعِشْرِينَ آيَةً مِنَ الْبَقَرَةِ، وَفِي الثَّانِيَةِ بِسُورَةٍ مِنَ الْمَثَانِي. وَقَرَأَ الأَحْنَفُ بِالْكَهْفِ فِي الأُولَى، وَفِي الثَّانِيَةِ بِيُوسُفَ أَوْ يُونُسَ، وَذَكَرَ أَنَّهُ صَلَّى مَعَ عُمَرَ رَضِيَ اللَّهُ عَنْهُ الصُّبْحَ بِهِمَا. وَقَرَأَ ابْنُ مَسْعُودٍ بِأَرْبَعِينَ آيَةً مِنَ الأَنْفَالِ، وَفِي الثَّانِيَةِ بِسُورَةٍ مِنَ الْمُفَصَّلِ. وَقَالَ قَتَادَةُ فِيمَنْ يَقْرَأُ سُورَةً وَاحِدَةً فِي رَكْعَتَيْنِ أَوْ يُرَدِّدُ سُورَةً وَاحِدَةً فِي رَكْعَتَيْنِ كُلٌّ كِتَابُ اللَّهِ.Narrated 'Abdullah bin As-Sa'ib: The Prophet ﷺ recited Surat Al-Mu’minun in the Fajr prayer and when he reached the story of Musa (Moses) and Harun (Aaron) or 'Isa (Jesus), he got a cough and bowed. 'Umar recited 120 Verses from Surat Al-Baqarah in the first Rak'a and in the second Rak'a, he recited a Surah from the Mathani (Surah of less than 100 Verses). Ahnaf recited in the first Rak'a Surat Al-Kahf and in the second Rak'a Surat Yusuf (Joseph) or Surat Yunus (Jonah) and said that he had offered the Fajr prayer with 'Umar reciting the same Surah. Ibn Mas'ud recited 40 Verses from Surat Al-Anfal (in the first Rak'a) and in the second Rak'a, a Surah from the Mufassal Surah [the Surah starting from Qaf to the end of the Qur’an]. Qatada said about a person who recited one Surah divided between two Rak'as or repeated the same Surah in both Rak'as that he can do so as all those Verses are from Allah’s Book.