Siman 581

(138.) I heard how Rabbainu z"l once wrote a letter to his daughter Sarah of blessed memory with great love and affection — and how he was greatly longing that she be at his table so that he could delight himself with her every day — and receive from her words wisdom and awe. "Are you not there like a hadas [myrtle] in the wilderness — where no one receives its good fragrance from it etc."