Sayyiduna Abdullah bin Abi Awfa (may Allah be pleased with him) narrates this saying of the Prophet (peace and blessings be upon him): "Indeed the angels do not descend upon a people among whom there is someone who severs the ties of kinship."
Al-Tabarani recorded it; its chain contains a narrator, Abu Idam al-Muharibi, who is a kadhdhab (liar).