It is narrated from Sayyiduna Abdullah (may Allah be pleased with him) that he (peace and blessings be upon him) said: "Allah is Witr (One) and He loves witr. O people of the Qur'an, you too should pray witr."
(b) Abu Dawud (may Allah have mercy on him) added in a narration that a Bedouin said: What are you saying? He (peace and blessings be upon him) said: "It is neither for you nor for your companions."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4455