Types of lying and the ruling on lying to obtain books

The questioner:
He says: Honorable Shaykh, may Allah grant you success, are there types of lying? And if a student of knowledge writes to one of the people of good asking him to provide him with some books, and he tells him that he is preparing them?

The Shaykh:
I tell you. Yes.

The questioner:
And Honorable Shaykh, may Allah grant you success, are there types of lying? And if a student of knowledge writes to one of the people of good to ask him to provide him with some books, and he mentions that he is preparing a research, and he lists some books for him, whereas in reality he is not preparing a research, but rather he said that only to get what he requested, is this lying? Since a friend of mine said that this does not fall under lying for the sake of benefit?

The Shaykh:
Lying is forbidden, a major sin among the major sins, and it is not permissible except in three cases which the Prophet (peace and blessings be upon him) excluded. They are: lying between spouses for the sake of repairing their relationship, and the second is lying to reconcile between people. People come in conflict and hatred, and then you say to one, "So-and-so loves you and praises you, and it seems he will meet you," and you go to the other and say the same to him to bring them closer together. This is lying to reconcile between people, and it is permissible because the benefit in it is stronger. And the third is lying in war. As the Prophet (peace and blessings be upon him) said.
In other than this, lying is not permissible, and it is a major sin among the major sins. A student of knowledge is more deserving of avoiding lying. Does he lie to get a book? Does he commit a major sin to get a book? Who said this? Yes.