When Rasulullah (sallallahu ‘alaihi wasallam) saw that the Quraish were obstinate in their enmity and opposition, then when the Haj season arrived, and people would come from far and wide, he himself would go to their camps to meet them. He would invite them towards Islam and advise them to assist and support the true religion. He would also invite the people towards tauheed (the Oneness of Allah Ta‘ala), truth and sincerity.