Ṣaḥīḥ al-Bukhārī & Ṣaḥīḥ Muslim

Anas ibn Mālik (may Allah be pleased with him) reported: While we were sitting with the Prophet (may Allah’s peace and blessings be upon him) in the mosque, a man came riding on a camel. He made his camel kneel in the mosque, tied its foreleg, and said: "Who amongst you is Muhammad?" At that time, the Prophet (may Allah’s peace and blessings be upon him) was sitting amongst us, leaning on his arm.

We replied: "This white man reclining on his arm." The man then addressed him: "O son of ‘Abdul-Muttalib!" The Prophet (may Allah’s peace and blessings be upon him) said: "I am here to answer you." The man said to the Prophet: "I want to ask you something and will be hard in questioning. So do not get angry." The Prophet (may Allah’s peace and blessings be upon him) said: "Ask whatever you want." The man said: "I ask you by your Lord, and the Lord of those who came before you.

Has Allah sent you as a messenger to all mankind?" The Prophet (may Allah’s peace and blessings be upon him) replied: "By Allah, yes." The man further said: "I ask you by Allah. Has Allah ordered you to offer five prayers in a day and night?" He replied: "By Allah, yes." The man further said: "I ask you by Allah. Has Allah ordered you to observe fasts during this month of the year?" He replied: "By Allah, yes." The man said: "I ask you by Allah.

Has Allah ordered you to take this charity from our rich people and distribute it amongst our poor people?" The Prophet (may Allah’s peace and blessings be upon him) replied: "By Allah, yes." Thereupon, that man said: "I have believed in all that you have been sent with, and I have been sent by my people as a messenger. I am Dimām ibn Tha‘labah, from the brothers of Banu Sa‘d ibn Bakr."