Hadith 31-266

وَبِإِسْنادِهِ عَنْ عَلِيِ‏ عَلَيْهِ السَّلامُ قالَ: قالَ النَّبِيُ‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: مُحِبُّكَ مُحِبّي وَمُبغِضُكَ مُبغِضي [وَمُبغضِي مُبغِضُ اللَّهُ‏] .

According to the same documentation, on the authority of Ali (a.s.), the Prophet (S) told him, “Those who love you love me, and those who despise you despise me. (Whoever despises me indeed despises God).”