Rabi'ah bin Ka'b Al-Aslami, May Allah be pleased with him, a servant of the Messenger of Allah, may the peace and blessings of Allah be upon him, and also one of the people of As-Suffah, said:
I used to spend my night in the company of Messenger of Allah, may the peace and blessings of Allah be upon him, and used to put up water for his ablution. One day he said to me, "Ask something of me." I said: "I request for your companionship in Paradise". He inquired, "Is there anything else?" I said, "That is all." He said, "Then help me in your request by multiplying your prostrations".