Which preposition to use with aspersion

of Occurrences 23%

We look upon this as a colorless aspersion of our subject's fair fame, and we therefore feel called upon to politely but furiously hurl it back in the teeth of its degraded and offensive inventor.

on Occurrences 21%

Now, her black treacheries have cast a foul aspersion on her whole sex.

against Occurrences 4%

"My dear," said her husband airily, "I make no aspersions against his moral character, but he certainly cannot be classed among the velvet-skinned aristocracy.

Which preposition to use with  aspersion