Israeli Prime Minister Benjamin Netanyahu's dog has been taken into quarantine after biting two people, the PM himself said in a Facebook post on Saturday.

The incident happened during a Hanukkah candle-lighting party, Netanyahu said.

He said the family had to give up the 10-year-old dog, which they adopted in July, for a 10-day assessment of its behaviour as required under Israeli law.

According to the Jerusalem Post, the incident happened at a candle-lighting party for government members at Netanyahu's home on Wednesday night, when the dog, named Kaiya, bit two people, including the husband of Israel's deputy foreign minister.

In an earlier Facebook post where Netanyahu posed for a photo with Kaiya, he said: "How much light Kaiya has brought into our home! If you are thinking of getting a canine, find an adult dog to rescue. You won't regret it."

In his latest posting, the PM said he believed the quarantine law should be changed.

"It has flaws that aren't consistent with reason and compassion," he wrote.

Still, he wished everyone, human or otherwise, a happy Hanukkah.

"Happy (Hanukkah) and Shabbat Shalom to everyone," he wrote, "whether you walk on two legs or four."