"We respect the stand of Canada", he said during a media briefing Friday morning.
Last summer the Philippine air force used its older combat utility helicopters during intense fighting in the city of Marawi, a predominately Muslim city.
Global Affairs Canada initially defended the helicopter sale, pointing out the aircraft would be used "exclusively" for disaster relief, search and rescue and passenger transport missions.
President Rodrigo Duterte on Friday told the Armed Forces to discontinue a helicopter deal with Canada, a day after the Canadian government ordered a review of the purchase.
"Now, I am directing the Armed Forces of the Philippines, since most of the guns, bullets and whatever weapons of war, we will really use those against them", he added. "Wag na ituloy [Don't continue] and somehow we will look for another supplier" he said.
"We are going to make sure, before this deal or any other deal goes through, that we are abiding by the rules and the expectations", he said. The allegations relate to extrajudicial executions committed during the president's war on drugs, which has killed thousands.
But International Trade Minister Francois-Philippe Champagne announced Wednesday he had ordered a review of the deal, which was finalized in December, after a senior member of the Philippines military said the aircraft would also be used in "internal security operations".
"U.S., because of its too much imposition, but I assure you, I am supporting Trump", Duterte said.
Canadian Foreign Minister Chrystia Freeland said on Thursday that an "extremely rigorous human rights review" would be undertaken before any export permit was issued over the helicopter contract. He is doing it also for his country.
Trudeau was asked American political analyst David Axelrod if he has any "concerns" on selling the Philippine government military choppers that might be used against Filipinos.
Trudeau said then that he raised concerns about human rights abuses and extrajudicial killings in Duterte's anti-drug campaign during a meeting with the Philippine president.
Bensouda has said in the past that she was deeply concerned about reports of the killings, and that statements by "high officials" in the Philippines "seem to condone such killings". "People just don't understand", he said.
"There are many massacres now, in all parts of Asia ... and I'm the one you want to hit", Duterte said.