How to use Friend's Profile picture for your Contacts

Even if you haven’t assigned any display pic to your friend’s number save in your phone’s contact,
WhatsApp will still show his profile pic which the guy have set as WhatsApp profile pic.

So, if you want to use those profile pics for your contest,
no need to capture screenshot then crop the profile picture for your contact.
Just navigate to SD Card >> WhatsApp >> Profile Pictures. Here you’ll find your friend’s profile picture saved with phone number as their name.
Just use it