Do not ever mark people by their sin, for Allah loves these three matters the most: Being moderate in your living, forgiving when your capable of doing so and being tender with the servants of Allah and whoever was tender with someone in this earthly world Allah will be tender with him on the Day of Resurrection
Prophet Khidr (as) last advice to Prophet Musa (as), Al Khisal p111, Bihar al Anwar v13 p294/ v70 p386/v75 p453, Wasail ush Shia v11 p429, Mustadrak al Wasail v11 p294,  (via thelittlephilosopher)