عَنْ أَبِي ذَرٍّ رضي الله عنه قَالَ: قُلْتُ: يَا رَسُولَ اللهِ مَا آنِيَةُ الْحَوْضِ؟ قَالَ: «وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ لَآنِيَتُهُ أَكْثَرُ مِنْ عَدَدِ نُجُومِ السَّمَاءِ وَكَوَاكِبِهَا، أَلَا فِي اللَّيْلَةِ الْمُظْلِمَةِ الْمُصْحِيَةِ، آنِيَةُ الْجَنَّةِ مَنْ شَرِبَ مِنْهَا لَمْ يَظْمَأْ آخِرَ مَا عَلَيْهِ، يَشْخَبُ فِيهِ مِيزَابَانِ مِنَ الْجَنَّةِ، مَنْ شَرِبَ مِنْهُ لَمْ يَظْمَأْ، عَرْضُهُ مِثْلُ طُولِهِ، مَا بَيْنَ عَمَّانَ إِلَى أَيْلَةَ، مَاؤُهُ أَشَدُّ بَيَاضًا مِنَ اللَّبَنِ، وَأَحْلَى مِنَ الْعَسَلِ».
Imepokelewa kutoka kwa Abii Dharri -Radhi za Mwenyezi Mungu ziwe juu yake- amesema: Nilisema: Ewe Mtume wa Mwenyezi Mungu, hicho chombo cha Birika kiko vipi? Akasema: "Namuapa yule ambaye nafsi yangu ipo mikononi mwake, kwa hakika vyombo vyake ni vingi kama wingi wa nyota mbinguni na sayari zake eleweni vyema kuwa kung'aa kwake kutakuwa katika usiku usio na mwezi, pako safi, vyombo vya peponi atakaye kunywa katika vyombo hivyo hatopatwa na kiu milele wala kiu hakitomrudia, na maji hayo yanaruka na kububujika kupitia mabomba mawili yaliyo juu ya peponi, yeyote atakaye kunywa katika Birika hilo hatopatwa na kiu, upana wake ni sawa na urefu wake ambao ni sawa kutoka Amman mpaka Aila (Ni katika miji ya Jordan, baina yake ni km 330) maji yake ni meupe mno kuliko maziwa, na ni matamu kuliko asali."
Abu Dharr (may Allah be pleased with him) reported: I said: "O Messenger of Allah, what about the vessels of the Cistern?" He said: "By the One in Whose Hand the soul of Muhammad is, its vessels will outnumber the stars in the sky and its planets shining on a dark cloudless night. These will be the vessels of Paradise. He who drinks from them will never feel thirsty. There will flow in it two spouts from Paradise and he who drinks from it will not feel thirsty. Its breadth is like its length, as wide as the distance between Ammān and Aylah. And its water is whiter than milk and sweeter than honey."
Kuthibitisha uwepo wa Birika na neema mbalimbali ziliopo humo.
Ukubwa wa Birika na urefu wake na upana wake na wingi wa vyombo vyake.