Sahih al-Bukhari Book 78, Hadith 21
I heard the Prophet (ﷺ) saying openly not secretly, "The family of Abu so-and-so (i.e. Talib) are not
among my protectors." `Amr said that there was a blank space (1) in the Book of Muhammad bin
Ja`far. He added, "My Protector is Allah and the righteous believing people." `Amr bin Al-`As added:
I heard the Prophet (ﷺ) saying, 'But they (that family) have kinship (Rahm) with me and I will be good
and dutiful to them. "
(the wife of the Prophet) The Prophet (ﷺ) 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.
The Prophet (ﷺ) said, "Al-Wasil is not the one who recompenses the good done to him by his relatives, but Al-Wasil is the one who keeps good relations with those relatives who had severed the bond of kinship with him."