Ibn Abi Najeeh said:

I asked Tawoos about a man who stoned the Jamrah with six pebbles and he said: “Let him donate a handful of food.” Then I met Mujahid and I asked him and told him what Tawoos had said. He said: “May Allah have mercy on Abu ‘Abdur-Rahman. Did he not hear the words of Sa"d bin Malik?” He said: “We stoned the jimar (or the jamrah) when we did Hajj with the Messenger of Allah (ﷺ), then we sat and talked, and among us were those who said: I threw six pebbles; and among us were those who said: I threw seven; and among us were those who said, I threw eight; and among us were those who said: I threw mine. And they did not see anything wrong with that.”