It is narrated from Sayyiduna Abdullah bin Umar, may Allah be pleased with them both, that the Messenger of Allah, peace and blessings be upon him, said: Islam is built upon five things. First, bearing witness that there is no deity except Allah and that indeed Sayyiduna Muhammad, peace and blessings be upon him, is the true Messenger of Allah; and establishing prayer; and giving zakat; and performing Hajj; and fasting in Ramadan.