Immigration official forgot to stamp Arrival date on Passport

[Immigrationprob]

Hi everyone,
THis is my very first post here.Please help.
I arrived in the US from India yesterday after a 6 week long trip. This is my very first trip after greencard and hence wasn't sure of the formalities.
The immigration official has not stamped Arrival date on my Passport.My husband who has arrived 2 weeks ago does have the stamp.
I am wondering whether this will affect my citizenship application in any way in the future? Also, if I do need the stamp whom do I go to?

P.S: My daughter's passport (U.S passport) has also been not stamped for Arrival.

Thanks for any input or similar experiences and suggestions.

[curiousone]

just make sure you make and keep a copy of your I-94 and your ticket/boarding pass , in case it ever becomes an issue as to when you reentered the US

[tomthetom]

No need to worry

It's happened to me many times. No need to worry at all. Some POE officers are more detailed than others.

PS: US passports are never stamped on return to US. Only foreign passports (with or without green cards are stamped)