Narrated Anas bin Malik: When Allah's Apostle came to Medina, he ordered that a mosque be built. He said, "O Bani An-Najjar! Suggest me a price for the garden of yours." They replied, "By Allah, we will not ask its price except from Allah."
— Sahih Bukhari, Volume 4, Book 51: Wills and Testaments (Wasaayaa), Hadith #35