Urwah related: Abu Bakr (may Allah be pleased with him) sent al-Ala' bin al-Hadrami (may Allah be pleased with him) with an army of Muslims towards the people of Bahrain, who had refused to pay the jizyah. Abu Bakr (may Allah be pleased with him) sent him against them when they refused to give the right of Allah in their wealth. So he set out towards them, with the sea between him and them, until they walked through it on their feet. They crossed in this way at a place where ships used to sail before that and still sail today. He fought them, and Allah made him prevail over them, so they surrendered; before that they had been refusing to give the right of Allah in their wealth.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15259