It is narrated from Abdullah bin Muhairiz that a man from Banu Kinanah, who was called Mukhdaaji, heard from a man of Syria whose kunyah was Abu Muhammad (he was an Ansari companion), that he used to say Witr is obligatory. Mukhdaaji said that I went to Sayyiduna Ubadah bin Samit (may Allah be pleased with him) and conveyed to him the statement of Abu Muhammad. He said, "Abu Muhammad has lied. I heard from the Messenger of Allah (peace and blessings of Allah be upon him), he said: 'Allah the Exalted has made five prayers obligatory upon His servants. Whoever performs them and does not take them lightly and abandon them, then Allah the Mighty and Majestic has made a covenant to admit him to Paradise. And whoever abandons them, then he has no covenant with Allah; if He wills, He will punish him, and if He wills, He will admit him to Paradise.'"