Kalda ibn Hanbal reported that Safwan ibn Umayya sent him to the Prophet (ﷺ) during the Conquest of Makka with some milk, gazelle, and cucumber. (Abu 'Asim said that the meant vegetables.) The Prophet (ﷺ) was at the top of the valley and I did not give the greeting nor ask for permission. He said, "Go back and say, 'Peace be upon you. May I enter?' That was after Safwan had become Muslim."