Silsilat al-Ahadith al-Sahihah

Lady Aisha (may Allah be pleased with her) says: I said, "O Messenger of Allah! If you were to descend in a valley where one tree has already been grazed upon and another tree is untouched, on which tree would you let your camel graze?" He (peace and blessings be upon him) said: "On the one which has not been used as fodder." The meaning of this hadith is that the Messenger of Allah (peace and blessings be upon him) did not marry any virgin woman except Lady Aisha (may Allah be pleased with her).