Mishkat al-Masabih #2617

He told that when the people saw the first fruits they brought them to the Prophet, and when he received them he said, "O God, bless us in our fruits; bless us in our city; bless us in our sa‘; and bless us in our mudd. O God, Abraham was Thy servant, friend and prophet, and I am Thy servant and prophet. He made supplication to Thee on behalf of Mecca, and I make on behalf of Medina the same supplication as he made on behalf of Mecca and as much again." He would then call to him the youngest child and give him those fruits. Muslim transmitted it.