Sasuke stared at the camera, then at Sakura and Sarada, and so on and so forth.
They were lying down, sleeping after a long walk, and Sasuke, not wanting to waste a minute, sat on the bed right next to them and looked at them, trying to keep this view in his mind.
These two girls were so important to him that he couldn't take his eyes off them, fearing that if he did, their faces would soon fade from his memory. Even more so now that he was going to be leaving them in a fortnight' time for no one knows how long.
Sasuke did not think about it any longer. He finally picked up the camera to take a picture of Sarada in his mother's arms.
This is the only way he will be able to have them with him at all times, no matter how far away from home he may be.