an.2.58 Aṅguttara Nikāya (Numbered Discourses)
58
“These two, mendicants, are not startled by a crack of thunder.
What two?
A mendicant who has ended defilements; and a thoroughbred horse.
These are the two who are not startled by a crack of thunder.”
“These two, mendicants, are not startled by a crack of thunder.
What two?
A mendicant who has ended defilements; and a thoroughbred horse.
These are the two who are not startled by a crack of thunder.”