The ruling on staying with a non-virgin wife for seven days?

Question:
If a man stays with his wife (who is not a virgin) for seven days...?

Answer:
He commits a sin unless the other wife with him consents. He has no right to stay with her for more than three days, after which he must divide his time. If his companions consent, they may say: "If he does not object, let him stay with her for ten days, or even a month." If they consent, there is no objection.
Q: If he stays with her for ten days and then compensates the others?
The Shaykh: No, he is only entitled to three days.
Q: There is a distinction between the two expressions: if a man marries a virgin to a non-virgin, and secondly: if he marries a non-virgin to a virgin. The first would be a virgin and the second a non-virgin...?
The Shaykh: The point is the last one: if she is a virgin, he divides seven days for her, this last one; and if she is a non-virgin, he divides three days for her.
Q: What indicates the permissibility of staying more than three days?
The Shaykh: Yes, it indicates this; if he increases for her, they will increase for them...
So that it does not become difficult for us meaning that if he divides seven days for her, he divides seven days for each of them, and the three days are lost and gone. This means, if you wish, "I will stay seven days with you," and then he stays seven days with each of his wives, so that the three days are lost.
Q: What about more than seven days?
The Shaykh: This is what came in the hadith: seven days. She said: "Will you stay seven days with me like a virgin?" He said: "If you wish, I will stay seven days with you, and I will stay seven days with my wives."