Source, in full
On November 12, 1971, in the middle of a discussion about India-Pakistan tensions with Henry Kissinger and Secretary of State William P. Rogers, after Rogers mentioned reprimanding Indira Gandhi. Conversation 617-009 of the White House Tapes. Quoted by Gary J. Bass "The Terrible Cost of Presidential Racism The Terrible Cost of Presidential Racism" The New York Times (September, 3, 2020)