It is narrated from Sayyiduna Abdullah bin Amr bin Aas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: The most beloved fast to Allah Almighty is the fast of Dawood (peace be upon him), and he used to fast half of the time, and the most beloved prayer at night to Allah is also that of Dawood (peace be upon him). He would sleep for the first half of the night, then stand (in prayer), then sleep in the last part of it, then after half the night, he would stand for one third of the night.