What I also see in the Kusalaniddesa of Vb 6 is what is needed for Nibbana: the lokuttara kusala citta. That is the citta with panna:
“…Tattha katame kusalamūlā? Alobho, adoso, amoho.
Tattha katamo alobho … pe … adoso … pe … amoho? Yā paññā pajānanā … pe … amoho dhammavicayo sammādiṭṭhi dhammavicayasambojjhaṅgo maggaṅgaṃ maggapariyāpannaṃ— ayaṃ vuccati “amoho”. Ime vuccanti “kusalamūlā”. …”
There are more kusala citta:
maha kusala citta,
rupavacara kusala citta,
arupavacara kusala citta,
but the link to panna is not shown. So we have kusala (or punnabhi) citta leading to good birth.
PS: I just see there are more maha kusala citta explained, some of them have a link from amoho to panna (Tattha katamo amoho? Yā paññā pajānanā … pe … amoho dhammavicayo sammādiṭṭhi— ayaṃ vuccati “amoho”.).