Traveling outside with children

Hello everybody

I am married with russian man with one baby (less than 2 y.o.)

My question is, can mother leave the country with the child without "authorization" of the father? (of course baby has passport). I ask this because in some countries, it is required written autorization from father/ or mother (if only one parent travel with children).

I ingore russian law on this respect, please let me know if some of you know about this.

Thanks!

If you want to leave the country you must present a notarized authorization of second parent