Musannaf Ibn Abi Shayba 33:534

Abu Mu'awiyah narrated to us, from Layth, from Abd al-Malik, from Anas, who said: Whoever takes a brother for the sake of Allah, a tower is built for him in Paradise. Whoever clothes his brother with a garment, Allah will clothe him with a garment in Paradise. Whoever eats a meal with his brother, Allah will make him eat a meal in the Fire. Whoever stands for his brother in a position of reputation and showing off, Allah will make him stand on the Day of Resurrection in a position of reputation and showing off.