Revealing cards retrieved with Ashur Tablets

The text of ashur say...

Master
Put this card in play. If you control three copies, remove all copies in play (even controlled by other Methuselahs) from the game to gain 3 pool and choose up to thirteen library cards from your ash heap; move one of the chosen cards to your hand and shuffle the others in your library.

This time the question is about ashur, the card says that when we gather 3 copies, we choose 13 and of those 13, 1 for the hand, we asked if these 13 have to be revealed? as they are in the ash heap, they are free for consultation , but when choosing the 13, they no longer form part of the ash heap, and the ashur text does not say that you have to reveal the cards.

Yes, you revealed the 13 cards and you announce which one is going to your hand. Ash heap is public information so you need to tell which card will be removed from the ash heap


groups.google.com/g/rec.games.trading-cards.jyhad/c/7fMPCYIPrag/m/_gGD-1da2N8J



boardgamegeek.com/thread/605871/ashur-tablets