I have my AP card and want to travel but afraid

[DaBabe]

I have a pending I-485. On Feb 27 my AP was approved. I got my combo card in the mail on Marc 9th. I want to travel to visit my grandmother who is dying, which I believe she will pass away before my interview because right now NY is backed up and I don't see me having my interview until sometime in June.
My question is: Do I need to go to the Immigration office to get my passport stamped before I leave the country?
I was told a friend that, I should make an appointment on InfoPass to get this done. I thought having the AP card was enough to travle

[DaBabe]

An update for anyone who may be reading & want to know............... I actually went to Federal Plaza (for those in NYC you know where this is), the Homeland Security person told me I didn't need to get my passport, having my combo card along with my passport is safe to travel outside the US and back

[JPALMA123]

There is no more stamping on passport required, that was for some people who neede to leave the country urgently without AP