Image assets Standard licence from Free category to client

Hello,

I have an active Adobe Creative Cloud Standard subscription. I recently downloaded 2 assets (images) with a Standard License from the Free category on Adobe Stock and incorporated them into a website design for a client.

How do I properly transfer or assign this Standard License to my client upon delivering the final website?

I would like to avoid requiring the client to create an Adobe Stock account just for these 2 free images.

1. Is it sufficient to create a client transfer document/contract that explicitly lists the Asset IDs and hands over the usage rights for this specific project?

2. In the event of a copyright compliance check (e.g., automated copyright crawlers), would this documentation along with the Asset IDs be enough for the client to prove legal usage?

Thank you for your guidance!