Sayyiduna Ibn Umar (may Allah be pleased with them both) regarding the fast of Ashura states that the Noble Prophet (peace and blessings be upon him) himself observed the fast on this day and also ordered others to fast on this day. When the fasts of Ramadan were made obligatory, this fast was abandoned. Sayyiduna Ibn Umar (may Allah be pleased with them both) himself would not fast on this day except when it coincided with his habitual fasting days.