Kamran exploded

Do you know who was at the door, it was Kashif and if you are eager to know why he didn't open the door let me tell you:

He was sitting in the launch counting money. Can you guess which money was that.....

It was the money Rashid gave him as his first wage. So, he was counting it when he heard a knock on the door, he soon realized that it was time, Kashif came home, and at first, he was startled but then he gathered all his courage and hid the money in his room then he opened the door, as it took him more than five minutes he was ready to give false excuses. By the way, when he opened the door, Kashif looked angry he came in, closed the door, and said with a worried face:

Kashif: I have been knocking for five minutes. Why did it take you so long?

Kamran: (making a voice of rattles) No need to worry. I was playing games all day long. and then I just fall asleep.

Kashif: You went to sleep? At this hour?