During a lecture, I heard this story: A Sahabi (radiyallahu’anhu) asked his wife for something to eat. She said that there was nothing in the home to eat. He went to the masjid, prayed two rak’ahs, came back but still there was nothing
He realised that there was something wrong with his salah. So he went back to the masjid, prayed two more rak’ahs returned home and asked his wife again. He found that the wheat grinder (chakki) he had in his house started operating by itself and was churning out flour that filled up every container in the house.
Is this a true story? What is its source and chain of narrators? What was the name of the Sahabi?