It is narrated from Sayyiduna al-Miswar bin Makhramah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "All ties will be cut off except my ties of marriage-bond, lineage and in-law relationship."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13396