Sayyiduna Talhah (may Allah be pleased with him) narrates that a Bedouin came to the Prophet (peace and blessings be upon him) and said: O Messenger of Allah! What is Islam? He replied:“Five prayers in the day and night.”He asked: Is there any prayer obligatory upon me besides these? He replied:“No.”Then he asked about fasting, so the Prophet (peace and blessings be upon him) said:“Fasting in the month of Ramadan is obligatory.”He asked: Are there any other fasts obligatory upon me besides this? He replied:“No.”Then Zakat was mentioned, and he again asked: Is there anything else obligatory upon me besides this? He replied:“No.”Upon this he said: By Allah! I will neither decrease nor increase anything from these. The Prophet (peace and blessings be upon him) said:“If he is speaking the truth and acts upon it, he will be successful.”