Rabee’ (rahimahullah) mentions:

Imaam Shaafi‘ee (rahimahullah) used to divide his night into three portions. The first third was for writing, the second third for Salaah and the last third for rest.

Rabee’ (rahimahullah) also said:

In the month of Ramadhaan, Imaam Shaafi‘ee (rahimahullah) used to complete the recitation of the Qur’aan Majeed sixty times. However, it is not possible to calculate how much of it was accomplished in Salaah.