「」、。
'I'm not going to lend you money,' I said flatly.
Literal
''Money [if-なら] won't-lend-[because-から emphatic-な]'', I [topic-は] curtly said.
にべもなく is a literary/set adverbial phrase meaning 'curtly, bluntly, without a trace of warmth' — literally 'without any hospitality/attachment'. にべ is an archaic word for the sticky glue made from fish guts, metaphorically 'connection, adhesion'. ~ならN as a conditional: '[if it's about money], [won't lend]'. The ending ~からな softens the refusal with a fellowship-asserting な particle.