"There is no sin more worthy of Allah hastening the punishment upon its practitioner in the world – along with what is in store for him in the Hereafter – than tyranny and severing the ties of kinship.” (Sahih)
Jami` at-Tirmidhi Book 37, Hadith 97
← Previous Hadith "The disease of the nations before you is creeping towards you: Envy and hatred, it is the Haliqah. I do not speak of what cuts the hair, but what severs the religion. By the One in Whose Hand is my soul! You will not enter Paradise until you believe, and you will not believe until you love each other. Shall I tell you about what will strengthen that for you? Spread the Salam among each other."

Jami` at-Tirmidhi Book 37, Hadith 96 Next Hadith → "There are two traits, whoever has them in him, Allah writes him down as grateful and patient. And whoever does not have them, Allah does not write him down as grateful, nor patient. Whoever looks to one above him for his religion, and follows him in it, and whoever looks to one who is below him in worldly matters, and praises Allah for the blessings He has favored the one who is above him with, then Allah writes him down as grateful and patient. And whoever looks to one who is below him for his religion, and looks to one who is above him for worldly matters, and grieves over what missed him of it, Allah does not write him down as grateful nor as patient." (Another chain reaching to) 'Amr bin Shu'aib, from his father, from his grandfather from the Prophet (s.a.w) with similar narration.

Jami` at-Tirmidhi Book 37, Hadith 98