Luke 17:6
New International Version (NIVLuke 17:6)
6 He replied, “If you have faith as small as a mustard seed, you can say to this mulberry tree, ‘Be uprooted and planted in the sea,’ and it will obey you.
From BibleGateway.com: http://www.biblegateway.com/passage/?search=Luke 17:6&version=NIV