Musannaf Ibn Abi Shaybah

Hazrat Taliq bin Ali (may Allah be pleased with him) says that we came to the service of the Holy Prophet (peace and blessings be upon him) as a delegation. We said, "In our land, there is a church. We request the leftover water from your ablution to purify it." The Prophet had water brought, performed ablution, rinsed his mouth, and placed the leftover water in our vessel. He then said, "Take it with you. When you reach your area, demolish your church, sprinkle this water on that place, and make that place a mosque."