Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) heard the Messenger of Allah (peace and blessings be upon him) saying: "Whoever meets Allah on the Day of Resurrection having kept to the five prayers, the fasting of Ramadan and the ritual bath (ghusl) from major impurity (janabah), he will be a true servant of Allah; and whoever betrays any of them will be an enemy of Allah."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13714