The invitation of Prophet (Muhammad) ﷺ to the people to embrace Islam, and to believe in his Prophethood and not to take each other as Lords instead of Allah
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ إِذَا غَزَا بِنَا.
Narrated Anas: as Hadith No. 193 above.