Aswad bin Yazid was informed by Hazrat Aisha (may Allah be pleased with her) regarding the night prayer of the Prophet (peace and blessings be upon him), that the Prophet (peace and blessings be upon him) used to sleep in the early part of the night and wake up in the last part of the night. Then, if he felt a need towards his wife, he would fulfill his need, then before touching water, he would stand up. When the first call to prayer was given, the Prophet (peace and blessings be upon him) would go quickly and pour water over his body, and if he was not in a state of major impurity, he would only perform the ablution for prayer, and he would offer two rak'ahs and proceed towards the mosque.