(49) باب تَرْتِيلِ الْقِرَاءَةِ وَاجْتِنَابِ الْهَذِّ وَهُوَ الإِفْرَاطُ فِي السُّرْعَةِ وَإِبَاحَةِ سُورَتَيْنِ فَأَكْثَرَ فِي الرَّكْعَةِ
Shaqiq reported:
A person from Banu Bajila who was called Nabik b. Sinan came to Abdullah and said: I recite mufassal surahs in one rak'ah. Upon this 'Abdullah said: (You recite) like the recitation of poetry. I know the manner in which the Messenger of Allah (ﷺ) recited two surahs in one rak'ah.
Reference: Sahih Muslim 822 e
In-book reference: Book 6, Hadith 340
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1795