Hadith.702 - Imam Ali ibn Abi Talib (as) said :
"A prayer in Bayt al-Maqdis (Jerusalem) is equivalent to one thousand prayers. A prayer in the Great Mosque (Masjid al-Haram) is equivalent to one hundred thousand prayers. A prayer in the Mosque of the Tribe (Masjid al-Qabilah) is equivalent to twenty-five prayers. A prayer in the market mosque is equivalent to twelve prayers. A man's prayer in his home is equivalent to one prayer."