Bukhari

Narrated Abu Huraira: The Prophet said, "Allah created the creations, and when He finished from His creations, Ar-Rahm i.e., womb said, "(O Allah) at this place I seek refuge with You from all those who sever me (i.e. sever the ties of Kith and kin). Allah said, 'Yes, won't you be pleased that I will keep good relations with the one who will keep good relations with you, and I will sever the relation with the one who will sever the relations with you.' It said, 'Yes, O my Lord.' Allah said, 'Then that is for you ' " Allah's Apostle added. "Read (in the Qur'an) if you wish, the Statement of Allah: 'Would you then, if you were given the authority, do mischief in the land and sever your ties of kinship?' (47.22)

Narrated Abu Huraira: The Prophet said, "The word 'Ar-Rahm (womb) derives its name from Ar-Rahman (i.e., one of the names of Allah) and Allah said: 'I will keep good relation with the one who will keep good relation with you, (womb i.e. Kith and Kin) and sever the relation with him who will sever the relation with you, (womb, i.e. Kith and Kin).

Narrated `Aisha: (the wife of the Prophet) The Prophet said, "The word 'Ar-Rahm' (womb) derives its name from 'Ar- Rahman' (i.e. Allah). So whosoever keeps good relations with it (womb i.e. Kith and kin), Allah will keep good relations with him, and whosoever will sever it (i.e. severs his bonds of Kith and kin) Allah too will sever His relations with him.