Islam is built on five

On the authority of Abū ʿAbd al-Raḥmān ʿAbd Allāh ibn ʿUmar ibn al-Khaṭṭāb, may Allah be pleased with them both, who said: I heard the Messenger of Allah ﷺ say: Islam is built upon five: testifying that there is no god but Allah and that Muhammad is the Messenger of Allah, establishing the prayer, giving the zakah, pilgrimage to the House, and fasting Ramadan.