And there was also this other post, here on SN, with more info on that:

*Lightning Needs Static QR Codes* 
https://stacker.news/items/54844

cryptocoin

tl;dr: No. Not with current implementations, and it would be unsafe if it were permitted.

This Tweet kicks off a Twitter thread with some more details:

> Can you pay a #Bitcoin Lightning invoice twice?

https://twitter.com/callebtc/status/1534878013225066497
https://nitter.it/callebtc/status/1534878013225066497

If you are looking for something like a "Static" LN invoice, there are a couple approaches.  

> BOLT 12, which has been implemented in c-lightning, is a way to essentially refer a payer to the node that is to be paid, in order to request a new invoice. While the BOLT 12 offer can be static and reusable — it always refers to the same node — the payee can generate new invoices on the fly when requested, allowing for much more flexibility, Provoost explained. 

https://bitcoinmagazine.com/technical/explaining-bolt-12

And then LNUrl Pay