Aal-i-Imraan 31

قُلْ إِن كُنتُمْ تُحِبُّونَ ٱللَّهَ فَٱتَّبِعُونِى يُحْبِبْكُمُ ٱللَّهُ وَيَغْفِرْ لَكُمْ ذُنُوبَكُمْ وَٱللَّهُ غَفُورٌ رَّحِيمٌ ﴿٣١﴾

Qul in kuntum tuhibboona Allaha faittabiAAoonee yuhbibkumu Allahu wayaghfir lakum thunoobakum waAllahu ghafoorun raheemun

Say (O Muhammad SAW to mankind): "If you (really) love Allah then follow me (i.e. accept Islamic Monotheism, follow the Quran and the Sunnah), Allah will love you and forgive you of your sins. And Allah is Oft-Forgiving, Most Merciful." The Noble Quran