This is the song I mean.
It has the phrase - nil na la which I think means 'it's not yet morning'

By 'the same song' do you mean it is the same story?



O codlas fein, I dthigh areir
Is tuirseach treith, do bhi mo chuisle
Comhra beil, bhi acu go leir
M'ingean fein, is a boch ar buhle

(Chorus)
Ta na la, nil na la
Ta na la 'gus in a mhaidin
Nil 'na la dheara a ghra
Ach solus ard, ata sa ghealaig
2
Eir id sui, a fhir a tigh
Cuir do bhriste 'mut gootapaigh
Coinnigh suas cuideachta shuairc
Don chroi mhaith mhor, go
dtioch an mhaidin

3
N'eireodh im shui ar fear a tigh
'Sni cuirfeadh briste'mum na hata
Blas na braon, dem cuidse dighe
Ni raghaidh na gcrol, go dtioch an mhaidin

4
Ta an barraille thar a ceann
Is ni fheicim ann ach driodar dearg
Ta mo ghini ar an mbord
Is bim ag ol, go dtioch an mhaidin