When is a girl prevented from shaking hands with men?

The Shaykh : She is to remain as she has been.
The student : Ah, but she is very young.

The Shaykh : We know her... she is young, but you are the one who prevents her from shaking hands, tell me.
The student : Seven years old, if Allah wills.

The Shaykh : Seven years old, perhaps she will not respond to you, so from now on.
The student : That is enough, if Allah wills, that is enough, if Allah wills.

The Shaykh : And upon you be peace, how is the doctor?

The questioner : We will call tonight.

The Shaykh : Tonight.

The questioner : Because he will travel tomorrow.

The Shaykh : Ah, I have no objection.

The questioner : What time?

The Shaykh : Now.

The questioner : If Allah wills.

The Shaykh: Come on.

The questioner : ... .

The Shaykh : Expand a little, I mentioned it before.

The questioner : No, if Allah wills... .

The Shaykh : She owes either making up the fast or an expiation.

The questioner: As for both together, no.

The Shaykh : No, contrary to the opinion of some scholars.

The questioner : May Allah reward you with good.