1. In early days when prophet sallalla ho allihi wasalam migrated to madina, muslims had to face great difficulty to get drinking water. There was no well surrounding muslims population except well of romma which was the property of a jew and he used to sell water at a very high cost. Muslims were no able to purchase so costly water.Prophet sallala ho allihi wasalam wanted to purchase that well for muslims.He sallalla hi allihi wasalam said that the person who would purchase that well for their muslim brothers , would get a river in heaven after death. At this occasion syedna usman R.A who was wealthy person among muslims came forward, purchased the well of romma and paid unbar gained demand of that cruel jew . Syedna usman paid 25 thousand darham for that well and donated its' water free among muslims of madina.
2 . In madina this well is still known with its name ber-e-roma. some people say it ber-e-usman. it is situated near masjid-e qiblatain. if you come to main road returning from masjid-e qiblatain you can find this well on the north of masjid-e-qiblatain. it is situated on muddy path There is no proper road leads to ber-roma. Now a small road has been built and this area is locally called SULTANA .