The Council in Trullo (Quinisext Council, 692 AD)

Whereas we understand that in some monasteries of women those who are about to be clothed with the sacred habit are first adorned in silks and garments of all kinds, and also with gold and jewels, by those who bring them thither, and that they thus approach the altar and are there stripped of such a display of wealth, and that immediately thereafter the blessing of their habit takes place, and they are clothed with the black robe; we decree that henceforth this shall not be done. For it is not lawful for her who has already of her own free will put away every delight of life, and has embraced that method of life which is according to God, and has confirmed it with strong and stable reasons, and so has come to the monastery, to recall to memory the things which they had already forgotten, things of this world which perisheth and passeth away. For thus they raise in themselves doubts, and are disturbed in their souls, like the tossing waves, turning hither and thither. Moreover, they should not give bodily evidence of heaviness of heart by weeping, but if a few tears drop from their eyes, as is like enough to be the case, they may be supposed by those who see them to have flowed μὴ μᾶλλον on account of their affection (διαθέσεως, affectionem) for the ascetic struggle rather than (ἢ) because they are quitting the world and worldly things.

Ancient Epitome of Canon XLV.

Parents shall not deck out in silks a daughter who has chosen the monastic life, and thus clothe her, for this is a recalling to her mind the world she is leaving.

This canon is at the present day constantly broken at the profession of Carmelites.