قَالَ الإِمَامُ جَعْفَرُ بْنُ مُحَمَّدٍ الصَّادِقُ : إِنَّ لِصَاحِبِ الأَمْرِ بَيْتاً يُقَالَ لَهُ: بَيْتُ الْحَمْدِ. فِيهِ سِرَاجٌ يَزْهَرُ مُنْذُ يَوْمٍ وُلِدَ إِلـى يَوْمٍ يَقُومُ بِالسَّيْفِ لاَ يُطْفـى.
Imam Ja’far ibn Muhammad as-Sadiq (peace be upon both of them) said: “Indeed the possessor of the command (Imam al-Mahdi) has a house which is referred to as, ‘The House of Praise’. In this house there is a lamp which has been glowing since the day he was born and will continue to do so until the day he makes his advent with the sword, and it will not be put out.”
Biharul Anwar, Volume 52, Page 158; al-Ghaybah of al-Nu’mani