How can the verse "And when the Horn is blown, there will be no ties of relationship between them that Day, nor will they ask about one another" be reconciled with the hadith "Every lineage and kinship will be severed on the Day of Resurrection except my lineage and kinship"? And what is the degree of authenticity of this hadith?

Critics have differed regarding the authenticity of the hadith: "Every lineage and affinity will be severed on the Day of Resurrection, except my lineage and my affinity." Some have deemed it weak, while others have authenticated it.

According to those who consider it authentic, "lineage" refers to kinship through birth, and "affinity" refers to kinship through marriage. The hadith does not apply to disbelievers; rather, it means that the lineage of the Prophet (peace be upon him) and his believing family will benefit them on the Day of Resurrection.

This does not contradict the Prophet's call to his household to strive and obey, because intercession and benefit are possessed by Allah, and lineage alone is not sufficient without righteous deeds.

The preponderant view is that the hadith is weak in its chain of transmission and its text. There is nothing to specify one lineage over another in terms of benefit on the Day of Resurrection. Benefit is contingent upon piety and righteous deeds, and Allah rewards for deeds, not for lineages.