Sayyiduna Anas (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) entered Makkah while Ibn Rawahah (may Allah be pleased with him) was holding the reins of his (peace and blessings be upon him) mount and saying: O disbelievers! Clear the way for him today; whoever comes out to fight will have his neck struck today, (we are those) who will sever their necks from their bodies, and friend will be parted from friend. 'Ya rabbi inni mu'minun bi-qawlihi' (O my Lord, I believe in his word).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21036