It is narrated from Sayyiduna Ka'b bin Ujrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) led the Maghrib prayer in the mosque of Banu Abd al-Ashhal. When he finished the prayer, people stood up to offer voluntary prayers, so the Prophet (peace and blessings be upon him) said: "Pray this prayer (that is, the voluntary prayer) in your homes."
Hadith Referenceالمعجم الكبير للطبراني / باب الكاف / 16370