Sayyiduna Talhah bin Ubaidullah (may Allah be pleased with him) narrates: A man from Najd came to the service of the Prophet (peace and blessings of Allah be upon him), whose hair was disheveled. The buzzing of his voice could be heard, but it was not clear what he was saying. When he came near, it became known that he was inquiring about Islam. The Prophet (peace and blessings of Allah be upon him) said: Five prayers are obligatory in the day and night. He asked: Is there any prayer obligatory upon me besides this? The Prophet (peace and blessings of Allah be upon him) said: No, except if you perform voluntary prayers (that is better). The narrator says: The Prophet (peace and blessings of Allah be upon him) said: Fasting in the month of Ramadan is obligatory. He asked: Are there any other fasts obligatory upon me besides these? The Prophet (peace and blessings of Allah be upon him) said: No, except if you keep voluntary fasts (that is better). The narrator states: The Prophet (peace and blessings of Allah be upon him) mentioned Zakat to him, so he asked: Is there any other payment obligatory upon me besides this? The Prophet (peace and blessings of Allah be upon him) said: No, except if you give charity voluntarily (that is better). The narrator says: Then that man went away, saying: By Allah! I will not add anything to this nor will I decrease anything from it. The Prophet (peace and blessings of Allah be upon him) said: If he has spoken the truth, then he has succeeded.