It was narrated that ‘Abdullah said: “I know the similar Sdrahs that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم used to recite, twenty Surahs in ten Rak’ahs.” Then he took ‘Alqamah’s hand and went in, then ‘Alqamah came out and we asked him and he told us what they were. (Sahih)