Almighty Allah has granted dignity and honor to everything that is associated with the Holy Prophet (Sallallahu alaihi wa sallam). The lineage of the Holy Prophet (Sallallahu alaihi wa sallam) is sacred and beneficial both in this world and the next. There are many rigorously authenticated Hadith present in this regard in various canons of Hadith.
Hadith in this regard are present in:
Mustadrak ‘Alas Sahihain, Hadith No. 7057
Musnad Imam Ahmed, Hadith No. 11437
Musnad Abu Ya’ala, Hadith No. 1203
Jame’ Ul Ahadith Wal Maraseel, Hadith No. 19907
Jame’ Ul Kabeer, Hadith No. 551
Majma’ Uz Zawaaid, Hadith No. 18464
Kanz Ul ‘Ummaal, Hadith No. 39186.
The actual Hadith itself:
Translation: Hadhrat Hamza bin Abu Sa’eed Khudri narrates on the authority of his father Hadhrat Abu Sa’eed Khudri (May Allah be well pleased with them), he says: I heard the Holy Prophet (Sallallahu alaihi wa sallam) say on the pulpit: What has happened to the people that they are saying that my lineage is of no benefit. Why not? By Allah! Indeed my lineage will stay intact in both this world and the next. The chain of narration of this Hadith is rigorously authenticated (Sahih).
There is another Hadith:
Translation: Hadhrat ‘Umar bin Khattab (May Allah be well pleased with him) said: I heard the Holy Prophet (Sallallahu alaihi wa sallam) say: On the Day of Judgment, except my lineage and servitude to me, every other relationship will be terminated. Imam Hakim has said: This Hadith is rigorously authenticated (Sahih).
The aforementioned Hadith is present in:
Mustadrak ‘Alas Sahihain, Hadith No. 4667
Musnad Imam Ahmed, Hadith No. 19444
Sunan Kubra Lil Baihaqui, Vol. 7, Pg. No. 64
M’ojam Kabeer Tabarani, Hadith No. 2568/2569
M’ojam Ausat Tabarani, Hadith No. 5764
Jame’ Ul Ahadith Wal Maraseel, Hadith No. 15740
Musnad Bazzaar, Hadith No. 273
Jame’ Ul Kabeer, Hadith No. 812
Kanz Ul ‘Ummaal, Hadith No. 31914
Hilyatul Auliya, Vol. 7, Pg. No. 314