It appears they are referring to former Goldman Sachs banker Tim Leissner, who is on trial in the US & is the US Government's star witness in the bid to prosecute Roger Ng (his co-conspiritor) for defrauding the Malaysian Sovereign Wealth Fund 1MDB.
Leissner claims that he was told they needed to bribe Sheikh Mansour, who wouldn't get out of bed for 'anything less than $100m' in order to raise $1.75 billion of debt for 1MDB (MSWF) to win approval. An Abu Dhabi-based company was then to act as a guarantor for 1MDB on the deal.
His recollections don't appear to be as solid under cross-examination however:
(Bloomberg) -- Former Goldman Sachs Group Inc. banker Tim Leissner’s dramatic account of two 2012 London meetings at which 1MDB bribes were discussed came under attack from the defense lawyer for his alleged co-conspirator, Roger Ng.Most Read from BloombergRussia’s Rating Cut to Junk; Talks on...
finance.yahoo.com