Laith bin Khaalid (rahimahullah) narrates the following from one of the students of Imaam Abu Hanifah (rahimahullah):

Imaam Abu Hanifah (rahimahullah) would perform abundant nafl salaah during the night. On one occasion, I saw him stand in salaah and recite the entire Qur’aan Majeed until Surah Takaathur. When he reached Surah Takaathur, he continued to recite it over and over again until the time of Tahajjud had ended and he completed his salaah.”

(‘Uqood-ul-Jummaan pg. 229)