He did describe the sudden nature of the “strike” — as Mr. Daqneesh called it — that sent him scrambling to rescue his children. He said he first found Omran and carried him to safety before returning to search for his other children and his wife.

Mr. Daqneesh did not say who was behind the attack, but he said he did not hear planes overhead before his house was shaken. Emergency medical workers and local journalists said at the time that the family’s house was hit by Syrian government or Russian airstrikes.

Volunteer emergency responders, known as the White Helmets, arrived shortly after the home was hit and helped evacuate the family, Mr. Daqneesh said.

”They took Omran, got him to the ambulance, where they filmed him,” Mr. Daqneesh said. “It was against my will. I was still upstairs in the house.”

Mr. Daqneesh said he was pressured by opposition activists after Omran was released from the hospital to “talk against the Syrian regime and the state,” adding that he had been offered money to do so, which he refused.

Supporters of the government and opposition activists have been quick to accuse each other of using Omran to further their own agenda.

Last year, after the images of Omran galvanized international attention around the plight of besieged civilians in Aleppo, Mr. Assad told Swiss television he thought the whole incident was a hoax — “part of the publicity of those White Helmets.”