It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever prays six rak'ahs after Maghrib without speaking any (worldly) word between them, they will be equal for him to the worship of twelve years."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Yahya bin Abi Kathir (may Allah have mercy on him) except Umar bin Abdullah (may Allah have mercy on him), and Zayd bin al-Hubab (may Allah have mercy on him) is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الألف / 819
Hadith Takhrij«أخرجه ابن خزيمة فى «صحيحه» برقم: 1195، والترمذي فى «جامعه» برقم: 435، وابن ماجه فى «سننه» برقم: 1167، 1374، وأبو يعلى فى «مسنده» برقم: 6022»