Is it obligatory for the family of the one who offers a sacrifice not to cut their hair and nails?

The questioner : Shaykh, regarding cutting hair and nails, is it upon the one who offers a sacrifice and his family, or is it not upon the one who does not offer a sacrifice?

The Shaykh : As you heard.

The questioner : As we heard.

The Shaykh: Yes.

The questioner : May Allah reward you with good.

The Shaykh : But what about you?

The questioner: Yes.

The Shaykh : The one who intends to offer a sacrifice, there is a text regarding him.

The questioner : Yes.

The Shaykh : As for the family, that is an ijtihad (independent legal reasoning), and this is an ijtihad that follows [the scholar's view]. Do you know the difference?

The questioner : Yes, may Allah reward you with good. May Allah reward you with good.

The Shaykh : And to you.

The questioner : Come on... Peace be upon you.

The Shaykh : And upon you be peace, and the mercy of Allah and His blessings.

The questioner: Peace be upon you.

The Shaykh : Welcome, and upon you be peace. Welcome, and upon you be peace.

The questioner : Shaykh, if you permit, we would like to consult you about a man who became Muslim a month ago and wants to move to Egypt. Should he move and keep it secret, or should he announce it? Or is it according to what he sees is best for him? What is your opinion?

The Shaykh : First, regarding his permissibility [to move], he is a Muslim. I do not think the foreign name remains as it is.
The student: Peace be upon you.

The Shaykh: And upon you be peace, welcome.
The student: Peace be upon you.

The Shaykh : And upon you be peace. Welcome? How are you?